The Delimitation Acts are the statutes through which India redraws the map of its legislatures, and their strangest feature is a silence. Four times since the Constitution commenced, Parliament has enacted a Delimitation Act and a commission has sat to fix the boundaries of parliamentary and assembly constituencies. Between the third of those exercises and the fourth, a gap of three decades opened, and inside that gap sits a constitutional bargain that still governs the composition of the House of the People: the number of seats allotted to each state was frozen by reference to the census of 1971, and it remains frozen until the figures of the first census taken after the year 2026 are published. A voter in India is therefore represented in the national legislature through an allocation struck from a population count taken more than five decades ago, when the census of 1971 recorded a population of about 548 million, in a country whose census of 2011 recorded about 1,211 million.

The freeze was not an oversight, and treating it as one is the first error in most accounts of the subject. It was a deliberate constitutional settlement, enacted in 1976, extended in 2001, and given its working shape in 2003, and at each stage Parliament stated its reason: states that succeeded in reducing the growth of their population in pursuit of a national policy should not be rewarded with a loss of seats. The consequence of holding that settlement for half a century is that the allocation of seats among the states and the boundaries of constituencies within them have been governed by two different clocks. Within a state, boundaries were redrawn on the census of 2001 by the commission constituted under the Delimitation Act, 2002, and the reservation of seats for the Scheduled Castes and the Scheduled Tribes was revised at the same time. Among the states, nothing has moved since the census of 1971, because the constitutional provisions that would otherwise compel a readjustment after every census carry provisos that suspend the obligation until a census taken after 2026 has been held and its figures published.

This article is the statute pillar for the subject. It sets out the constitutional provisions that allot seats and divide states into constituencies, the four Delimitation Acts and the commissions they created, the text and history of the freeze, the finality that the law attaches to a commission’s orders, and the position that will arise when the freeze lapses. It also states, at full strength and in their proponents’ own terms, the two arguments that divide opinion on the readjustment to come: the argument from equality of representation, which rests on the words of the Constitution itself, and the argument from the bargain, which rests on the assurance given to states that curbed population growth. The article adopts neither. Its claim is narrower and, for a reader who wants the law rather than the controversy, more useful: the freeze was a bargain, and its expiry is not automatic in the way political discussion usually assumes. When the figures of the first census taken after 2026 are published, readjustment ceases to be a choice open to Parliament and becomes a duty imposed by the constitutional text, and the only lawful routes around the arithmetic that follows are a further amendment of the Constitution or a change in the total size of the House.

Different readers come to the subject with different needs, and the article is arranged to serve each of them from the same text. The student of the Constitution needs the instruments in order and the amendments distinguished, because examinations punish the compression of the settlement into a single amendment or a single date. The researcher and the policy reader need the arithmetic and the options, the ceiling, the ratification discipline and the difference between a settlement that changes the size of the House and one that changes the shares within it. The journalist needs the chronology most of all, because the subject is reported through projections, and a projection detached from the instrument that would have to enact it is noise. Each of those needs is met by returning to the texts, and the texts are few enough to be mastered whole: five constitutional provisions in their amended form, four short Acts, one line of authority on finality, and the provisos on which everything in the subject turns.

The Constitutional Design: Articles 81, 82 and 170

The starting point is the composition of the House of the People under Article 81. The House consists of members chosen by direct election from territorial constituencies in the states, not more than five hundred and thirty in number, together with not more than twenty members to represent the Union territories, chosen in such manner as Parliament may by law provide. The elected strength of the House therefore has a constitutional ceiling of five hundred and fifty, a figure that matters greatly to the options discussed later in this article, because any proposal to enlarge the House beyond that ceiling must first amend Article 81 itself. Within that frame, the operative business of allotting seats to states and carving each state into constituencies is carried on under the Representation of the People Act, 1950, the statute that holds the allocation of seats in the House and in the state legislatures and supplies the machinery of electoral rolls and election administration beneath the constitutional text.

Article 81 then states the distributive principle. The seats allotted to each state in the House of the People are to be allotted in such manner that the ratio between the number of seats and the population of the state is, so far as practicable, the same for all states. Each state is to be divided into territorial constituencies in such manner that the ratio between the population of each constituency and the number of seats allotted to it is, so far as practicable, the same throughout the state. Two ideas are packed into that drafting. The first is equality of representation between states: a state’s share of seats should track its share of population. The second is equality of representation within a state: constituencies should hold broadly equal populations, so that a vote cast in one part of a state carries the same weight as a vote cast in another. The qualifying phrase, so far as practicable, concedes that exact equality is unattainable across indivisible seats and uneven geography, but it does not dilute the direction of the rule. Population is defined for this purpose as the population as ascertained at the last preceding census of which the relevant figures have been published, and a proviso inserted by amendment directs that, until the relevant figures for the first census taken after the year 2026 have been published, that reference to population is to be construed as a reference to the population as ascertained at the census of 1971. The freeze is therefore written into the definition of the very word on which the equality rule operates.

Article 82 is the engine of the system. Upon the completion of each census, the allocation of seats in the House of the People to the states and the division of each state into territorial constituencies shall be readjusted by such authority and in such manner as Parliament may by law determine. The provision does not itself redraw anything. It imposes the obligation and leaves the instrument to Parliament, which is why each exercise of readjustment has required a Delimitation Act: the Act constitutes the authority, prescribes its composition and procedure, and gives its orders legal force. A proviso to Article 82 protects continuity: a readjustment does not affect representation in the House of the People until the dissolution of the House existing when the readjustment is made, so a sitting House completes its term on the map that elected it and the new map governs the elections that follow. Around that spare frame, the amending Acts of 1976, 2001 and 2003 built the provisos that suspend the obligation, and those provisos are examined in their own sections below.

What does Article 82 require after each census?

Article 82 requires that, upon the completion of each census, the allocation of seats in the House of the People to the states and the division of each state into territorial constituencies be readjusted by the authority and in the manner that Parliament determines by law, without disturbing the sitting House before its dissolution.

The corresponding provision for the states is Article 170. A legislative assembly consists of members chosen by direct election from territorial constituencies, not more than five hundred and not less than sixty in number, with smaller assemblies existing for a few states under their own constitutional or statutory arrangements. The total number of seats in an assembly and the division of the state into constituencies follow the same ratio principle as Article 81, and Article 170 requires readjustment upon the completion of each census in the same terms, with the same protection for a sitting assembly and, by the amendments described below, the same suspension until the first census taken after 2026. Delimitation in India is thus a single exercise with two theatres. One statute, one commission and one set of orders ordinarily handle the parliamentary constituencies and the assembly constituencies of every state together, because the two operations draw on the same census figures and because every assembly constituency must fall wholly within one parliamentary constituency.

Three further provisions complete the design. Articles 330 and 332 reserve seats for the Scheduled Castes and the Scheduled Tribes in the House of the People and in the legislative assemblies, in numbers bearing, as nearly as may be, the same proportion to the total seats of a state as the population of the castes or tribes bears to the total population of the state; a separate section below examines how those reserved seats are drawn and redrawn. Article 329 bars interference by courts in electoral matters, and its first clause provides that the validity of any law relating to the delimitation of constituencies or the allotment of seats to such constituencies shall not be called in question in any court, a bar that the Delimitation Acts echo in their own finality clauses. Finally, Article 327 empowers Parliament to legislate on elections to Parliament and the state legislatures, and it is within this field of election law as a whole that the Delimitation Acts sit, distinct from the Representation of the People Act, 1951, which governs the conduct of elections fought on whatever map the delimitation orders supply.

Two refinements of the design repay attention before the narrative begins. The first concerns the Union territories. Article 81 allots the territories up to twenty members, to be chosen in such manner as Parliament may by law provide, and Parliament has provided through the Government of Union Territories Act, 1963 and the law governing the National Capital Territory of Delhi: the seats of the territories in the House are filled by direct election from territorial constituencies delimited like those of the states, and the Delimitation Acts have always comprehended the territories within their exercises, since a map that stopped at state borders would leave the House incompletely constituted. The second refinement concerns the texture of the provisos themselves. They are not a single clause but a coordinated set, placed in the definition of population in Article 81, in the readjustment provision of Article 82, in the assembly provisions of Article 170, and in the reservation provision of Article 330, each closing a door through which the frozen allocation might otherwise have been disturbed. Article 330 matters in that company because the number of seats reserved for the Scheduled Castes and the Scheduled Tribes in each state is a proportion of the state’s total seats, so that a change in the total would have carried the reserved numbers with it; freezing the reference population in Article 330 held the reserved totals to the proportions of 1971 until the amendment of 2001 released the within-state revision of reservation on the census of 2001. The freeze, in other words, was engineered as a system, and any future amendment that proposes to lift or extend it must work through the same four sites or leave inconsistencies between them.

The design, taken as enacted in 1950, is a self-correcting one. Population moves; every ten years a census counts the movement; after each census the seat allocation and the constituency map are readjusted so that representation tracks population again. For the first quarter century of the Constitution the machinery ran on schedule, and the commissions of 1952, 1963 and 1973 successively raised the elected strength of the House of the People and redistributed seats among the states as population shifted. What interrupted the cycle was not administrative failure but a policy decision taken at the highest constitutional level, and understanding the Delimitation Acts requires holding both halves of that story together: a machine built to adjust after every census, and a series of amendments that switched the machine off.

The First Exercises: 1951 and the Commissions of 1952, 1963 and 1973

The first delimitation of independent India was not carried out under a Delimitation Act at all. For the elections of 1951 and 1952, the President, acting with the Election Commission under the Representation of the People Act, 1950, made the Delimitation of Parliamentary and Assembly Constituencies Order, 1951, which divided the country into constituencies for the first general elections. Parliament then placed the exercise on its enduring statutory footing. The Delimitation Commission Act, 1952, Act 81 of 1952, provided for the readjustment of the representation of territorial constituencies in the House of the People and in the state legislative assemblies on the basis of the census of 1951, which the Act’s definitions made its governing census figures. Its third section constituted a Delimitation Commission of three members: two persons who were or had been judges of the Supreme Court or of a High Court, appointed by the Central Government, and the Chief Election Commissioner as an ex officio member, with one of the judicial members nominated as chairman. That composition, a judicial chair, one further judicial member and the head of the election machinery, set the pattern that every later Act has followed with variations.

The commission constituted under the Act of 1952 sat in 1953 under the chairmanship of Justice N. Chandrasekhara Aiyar, a former judge of the Supreme Court. Working from the census of 1951, it readjusted the allocation of seats among the states and redrew constituency boundaries, and the elected strength of the House of the People rose from 489 to 494. The orders of that era were carried into consolidated delimitation orders in 1956 and again in 1961, as state reorganisation redrew the internal map of the Union and the machinery absorbed the new states. The interface with reorganisation is a permanent feature of the subject. Delimitation presupposes the states whose seats it allots; whenever Parliament redraws a state, by the States Reorganisation Act, 1956, by the Acts that created the north eastern states, by the Acts that divided Madhya Pradesh, Uttar Pradesh and Bihar in 2000, or by the Jammu and Kashmir Reorganisation Act, 2019, the allocation and the constituency map of the affected territories must be remade, and the law has handled that necessity sometimes through the Election Commission’s powers to update and correct the operative order and sometimes through a commission of the Delimitation Act pattern, as the Jammu and Kashmir exercise of 2020 to 2022 shows. A reader should therefore distinguish two kinds of delimitation event: the general decennial readjustment that Article 82 contemplates after each census, and the local readjustment that follows the creation or alteration of a state. The freeze binds the first kind, in its interstate aspect, and leaves the second kind to be worked out under the reorganisation statute itself and the constitutional provisions, including Articles 3 and 4, that govern the making of new states. The point of institutional history is worth holding on to: delimitation in the nineteen fifties was a routine act of constitutional maintenance, performed after a census, under a short statute, by a small judicially led body whose orders took effect without parliamentary amendment and without judicial supervision.

The second exercise followed the census of 1961. The Delimitation Commission Act, 1962, Act 61 of 1962, repeated the design of its predecessor: a commission of two judges of the Supreme Court or a High Court and the Chief Election Commissioner, one judicial member nominated as chairman, charged with readjusting the allocation of seats and the division into constituencies on the basis of the census figures the Act specified, those of the census of 1961. The commission constituted under that Act in 1963 readjusted representation across a Union that had been reorganised since the previous exercise, and the elected strength of the House of the People rose from 494 to 522. Its orders were issued in 1964 and 1967. Nothing in the record of that commission suggested controversy of the kind that attaches to the subject in later decades; the readjustment increased the size of the House and shifted seats towards the states whose populations had grown fastest, and both consequences were accepted as the ordinary operation of Article 82.

The third exercise followed the census of 1971 and was the last full readjustment of the allocation among states that India has carried out. The Delimitation Act, 1972, Act 76 of 1972, followed the pattern of the Act of 1962, as its own statement of objects records: the delimitation then in force rested on the population figures of the census of 1961, the census of 1971 had been completed, and a readjustment of the allocation of seats in the House of the People, of the total number of seats in each legislative assembly, and of the division of each state into territorial constituencies was therefore necessary. The Act’s definitions fixed its governing census figures as those of 1971. Its third section constituted the commission of two judges and the Chief Election Commissioner; its eighth section directed the commission to determine, on the basis of those figures and having regard to Articles 81, 170, 330 and 332, the number of seats to be allocated to each state and the number, if any, to be reserved for the Scheduled Castes and the Scheduled Tribes; its ninth section directed the distribution of those seats to single member territorial constituencies on stated principles; and its tenth section gave the commission’s orders the force of law upon publication in the Gazette and declared that they shall not be called in question in any court.

When did a delimitation order last change the number of seats allotted to a state?

The delimitation order of 1976, made by the commission chaired by Justice J. L. Kapur under the Delimitation Act, 1972 on the figures of the census of 1971, is the last order that altered the allocation of seats in the House of the People among the states, raising the elected strength of the House from 522 to 542.

The commission constituted under the Act of 1972 in 1973 was chaired by Justice J. L. Kapur. Its work issued in the Delimitation of Parliamentary and Assembly Constituencies Order, 1976, which raised the elected strength of the House of the People to 542, and the addition of a seat for Sikkim brought the total to 543, the elected strength at which the House has stood ever since. Every element of that settlement remains visible in the legislature that sits in the present century: the same total of seats, the same distribution of those seats among the states, and constituency boundaries that survived until the commission of 2002 redrew them within state lines. The order of 1976 also fixed the distribution of reserved seats for the Scheduled Castes and the Scheduled Tribes on the population proportions of 1971, returning 79 seats reserved for the Scheduled Castes and 41 for the Scheduled Tribes in the House of the People. When the commission of 2002 revised those figures on the census of 2001, the comparison between its numbers and the numbers of 1976 measures how much the reserved map had aged along with the general one.

Comparing the three early Acts shows a legislature refining a template rather than reinventing one. Each Act is short. Each defines its census, constitutes a three member commission under judicial leadership, surrounds the commission with associate members drawn from the legislatures whose constituencies are in issue, prescribes principles of compactness and administrative convenience for the drawing of boundaries, requires the commission to publish proposals, receive objections and hold public sittings, and closes with a finality clause that gives the resulting orders the force of law and places them beyond challenge in court and beyond modification by the legislatures before which they are laid. The Delimitation Act, 2002 reproduces that template almost exactly, and the sections below follow the template in the order the Acts present it. What changed across the half century was not the machinery but the constitutional instructions under which the machinery was set to work, and the change came from the direction of population policy.

The Freeze of 1976: The 42nd Amendment

The Constitution (Forty-second Amendment) Act, 1976, the wide ranging amendment enacted during the Emergency, carried among its many changes the first suspension of the delimitation cycle. By amendments to Articles 81, 82, 170 and 330, it froze the allocation of seats among the states on the basis of the census of 1971: until the relevant figures for the first census taken after the year 2000 had been published, the reference to population in the composition and readjustment provisions was to be read as a reference to the population ascertained at the census of 1971, and no readjustment of the allocation of seats or of the total number of seats in a legislative assembly was required. The freeze applied at both levels of the system. A state could neither gain seats in the House of the People for population growth nor lose them for population restraint, and the size of its legislative assembly was likewise held.

The reason stated for the change was population policy. India had adopted the limitation of population growth as a national objective, pursued through family planning programmes administered in large part by the states. Under an unfrozen Article 82, success in that programme carried a constitutional penalty: a state that reduced its rate of growth would, at the next census, receive a smaller share of seats in the House of the People than a state that had not, and a state whose population grew rapidly would be rewarded with greater representation. The framers of the freeze treated that incentive structure as perverse. A temporary suspension, running for the twenty five years until the first census after 2000, was presented as the interval in which population growth rates across the states might converge, after which readjustment could resume without punishing the states that had complied with the national programme. The freeze was therefore designed as a bridge: long enough to change behaviour, short enough to remain an exception to the constitutional rule rather than a replacement for it.

Two features of the 1976 settlement deserve emphasis because later debate often misstates them. The first is that the freeze bound the allocation of seats among states and the totals of assembly seats, but the constitutional text as amended did not in terms forbid every species of boundary revision for all time; the operative provisos suspended the readjustment that Article 82 would otherwise have required, and the practical consequence was that no Delimitation Act was enacted after the censuses of 1981 and 1991 at all, so boundaries within states also remained where the order of 1976 had left them. The second is that the freeze was genuinely temporary in its own terms. It was keyed not to a date but to an event, the publication of figures for the first census taken after the year 2000, and when that event approached, the choice before Parliament was the honest one the text contemplated: allow the readjustment to proceed on the census of 2001, or amend the Constitution again and extend the suspension. Parliament chose extension, and the manner of that choice, pairing a longer freeze with a permission to redraw boundaries inside states, is the settlement under which India still elects its legislatures.

The policy setting of the freeze is worth one further paragraph, because the incentive argument was not an afterthought attached to the amendment but the centre of the population programme of its decade. The National Population Policy announced in 1976 placed the limitation of growth at the head of the Union’s social objectives and contemplated a battery of measures, from the raising of the age of marriage to the linking of a portion of central assistance to states with their performance in family planning. A representation system that taxed success in that programme at every census would have set the Constitution against the policy in the most visible way available, transferring seats, and with them voice in the Union’s councils, from compliant states to others in proportion to their non-compliance. The freeze removed the tax for the period in which the demographic transition was expected to work itself through the state system. Its authors did not disguise the departure from the equality rule; they justified it as a suspension in aid of a transition, and the two extensions since have renewed the justification rather than the design, each time on the ground that the transition was incomplete. The debate at the lapse will be, in substance, a debate about whether that justification has finally spent itself, and it is best conducted, as the two cases in this article are stated, with the justification acknowledged at its full original strength.

The Extension of 2001 and the Census Substitution of 2003

The Constitution (Eighty-fourth Amendment) Act, 2001 did three things. It extended the freeze on the allocation of seats among the states and on the totals of assembly seats from the first census taken after the year 2000 to the first census taken after the year 2026, so that the reference to population in Articles 81, 82, 170 and 330 continues to be read as the population of the census of 1971 until the figures of that later census are published. It recorded the same policy ground as its predecessor, that the suspension should continue while population stabilisation measures took effect, so that states pursuing them were not penalised in representation. And it separated the two operations that the earlier cycle had performed together: while the allocation of seats among states remained frozen, the amendment permitted the readjustment and rationalisation of territorial constituencies within each state, including the revision of seats reserved for the Scheduled Castes and the Scheduled Tribes, without altering the number of seats allotted to any state. That permission converted delimitation from a single indivisible exercise into two distinct ones, one suspended and one revived.

The Constitution (Eighty-seventh Amendment) Act, 2003 then settled the data on which the revived operation would run. The permission granted in 2001 had referred to the census of 1991 as the basis for the within-state readjustment. The amendment of 2003 substituted the census of 2001, so that the boundaries to be drawn and the reservation proportions to be applied would rest on the most recent completed enumeration. The sequence matters for accuracy in describing the settlement. The freeze on interstate allocation is the work of the amendment of 1976, extended by the amendment of 2001. The permission to redraw within states is the work of the amendment of 2001. The choice of the census of 2001 as the basis for that redrawing is the work of the amendment of 2003. Accounts that attribute the whole arrangement to a single amendment, or that describe the amendment of 2001 as having itself redrawn boundaries on the census of 2001, compress three distinct instruments into one and misdate the design.

One further amendment completes the statutory frame. The Constitution (One Hundred and Fourth Amendment) Act, 2019 extended the reservation of seats for the Scheduled Castes and the Scheduled Tribes under Article 334 for a further period, so that it runs until the year 2030, and brought to an end the nomination of members of the Anglo-Indian community that Articles 331 and 333 had permitted. Reservation of seats in the legislatures is therefore time limited by its own constitutional clock, renewed decade by decade, while delimitation is census limited, suspended by provisos keyed to an enumeration. The two clocks run independently, and a reader tracking the subject must watch both: the commission that eventually sits after the freeze lapses will draw reserved seats under proportions taken from the new census, for a reservation whose own continuation past 2030 will require a further amendment of Article 334.

The Delimitation Act, 2002 and the Fourth Commission

The Delimitation Act, 2002, Act 33 of 2002, is the statute under which the fourth commission worked and the statute through which the compromise of 2001 and 2003 was executed. Its long title states its purpose without ornament: an Act to provide for the readjustment of the allocation of seats in the House of the People to the states, the total number of seats in the legislative assembly of each state, the division of each state into territorial constituencies and for matters connected therewith. Read against the constitutional provisos then in force, that purpose had a defined and limited reach. The allocation of seats to the states could not in substance be readjusted away from the census of 1971, because the Constitution forbade it; the division of each state into constituencies could be and was to be readjusted on the census of 2001. The Act’s definition of its governing census figures as the figures of the census of 2001, substituted by amendment in 2003 to match the Eighty-seventh Amendment, records that division of labour in a single definition.

The third section of the Act constitutes the commission, and its composition differs from the earlier Acts in one respect that reflects the enlarged role of the election machinery. The commission consists of three members: a person who is or has been a judge of the Supreme Court, appointed by the Central Government, who serves as chairperson; the Chief Election Commissioner or an Election Commissioner nominated by the Chief Election Commissioner, as an ex officio member; and the State Election Commissioner of the state concerned, as an ex officio member for the work of that state. The commission constituted under the Act on 12 July 2002 was chaired by Justice Kuldip Singh, a former judge of the Supreme Court, and B. B. Tandon, an Election Commissioner nominated by the Chief Election Commissioner, sat among its members. The fifth section surrounds the commission, for the work of each state, with ten associate members: five members of the House of the People representing that state, nominated by the Speaker of that House, and five members of the state legislative assembly, nominated by the Speaker of the assembly. Associate members assist the commission with local knowledge of the constituencies under revision, and dissenting proposals of an associate member are published with the commission’s proposals; but the Act states the limit of their role in terms that admit no ambiguity: none of the associate members shall have a right to vote or to sign any decision of the commission. The map is drawn by the three members, advised but not governed by the legislators whose seats it shapes.

The substantive directions to the commission appear in its eighth and ninth sections. The commission determines the readjustment of seats and the reservation of seats for the Scheduled Castes and the Scheduled Tribes in accordance with the constitutional provisions, and then distributes the seats of each state to single member territorial constituencies on the basis of the census figures, having regard to a set of principles that the Act spells out and that descend from the corresponding provisions of the earlier Acts. Constituencies are to be geographically compact areas, delimited with regard to physical features, existing boundaries of administrative units, facilities of communication and public convenience. Every assembly constituency is to fall wholly within one parliamentary constituency. Constituencies in which seats are reserved for the Scheduled Castes are to be distributed in different parts of the state and located, as far as practicable, where the proportion of the Scheduled Caste population is comparatively large; constituencies reserved for the Scheduled Tribes are to be located where the proportion of the Scheduled Tribe population is the largest. The procedure is deliberative and public: the commission publishes its proposals together with any dissenting proposals of associate members in the Gazette of India and in the official gazettes of the states concerned, specifies a date for their further consideration, receives objections and suggestions, holds public sittings in each state, and thereafter determines the delimitation by one or more orders.

The eighth section states the commission’s determining functions, and their wording records the compromise in statutory form. The commission is to determine the number of seats in the House of the People to be allocated to each state and the total number of seats to be assigned to each legislative assembly, together with the seats reserved for the Scheduled Castes and the Scheduled Tribes, on the basis of the governing census figures and having regard to Articles 81, 170, 330 and 332. Under the provisos then in force, the numbers so determined for allocation and for assembly totals could only reproduce the settlement of 1971, and the commission’s real determining work lay in the reserved numbers, which the amendment of 2001 had released to be recomputed on the census of 2001, and in the distribution that the ninth section governs. The amendment of 2001 had described the within-state exercise as a readjustment and rationalisation of territorial constituencies, and rationalisation is the accurate word for much of what the commission did: constituencies that had drifted into extreme inequality of population within a state were redrawn towards the state average, assembly segments were rearranged so that each fell wholly within one parliamentary constituency, and a stock of anomalies accumulated over three decades of administrative change, new districts, divided districts and renamed towns was worked through constituency by constituency. The commission also revised the names of constituencies where the old names no longer answered to the geography, a function easy to overlook and impossible to separate from the rest, since a name in a delimitation order is part of the legal identity of the seat.

Did the 2002 delimitation change how many seats each state holds?

The delimitation carried out under the Delimitation Act, 2002 changed no state’s allotment of seats in the House of the People or in its legislative assembly, because the constitutional freeze held those numbers to the census of 1971; the commission redrew constituency boundaries within each state on the census of 2001 and revised which seats were reserved.

The tenth section of the Act governs the life of the orders once made. Each order is published in the Gazette of India and in the official gazettes of the states concerned. Upon publication in the Gazette of India, every such order shall have the force of law and shall not be called in question in any court. The orders are laid before the House of the People and the legislative assemblies of the states concerned, which receive them without any power to modify them. The readjustment they embody applies to every election held after publication, in supersession of the delimitation provisions of the Representation of the People Act, 1950 and of earlier orders, but it does not affect the representation in an existing House or assembly until that House or assembly is dissolved, and by-elections in the interval are held on the superseded provisions. A power under the eleventh section lets the Election Commission correct printing mistakes and inadvertent errors in the orders and keep them up to date as district boundaries and names change, without altering the boundary, area or extent of any constituency.

Can Parliament amend a delimitation order laid before it?

A delimitation order laid before the House of the People or a state legislative assembly cannot be modified by the legislature receiving it: the tenth section of the Delimitation Act, 2002 gives the order the force of law upon publication and reserves change to the commission and the Election Commission’s narrow correction power.

The orders of the commission of 2002 were made effective for most states and Union territories from 19 February 2008 by order of the President, and for Tripura and Meghalaya from 20 March 2008. The first election fought on the redrawn map was the election to the Karnataka legislative assembly in May 2008, and the general election of 2009 was the first for the House of the People conducted throughout the participating states on constituencies drawn from the census of 2001. The commission’s tenure ran until 31 May 2008. Measured by the standard its statute set, the exercise did what the constitutional compromise required of it: it equalised constituency populations within each state on the most recent census Parliament had authorised it to use, it moved reserved seats to the constituencies where the proportions of the relevant populations had come to lie, and it left the interstate distribution of political weight exactly where the census of 1971 had placed it. Whether that last consequence was the exercise’s virtue or its defect is the political question that the freeze was designed to postpone, and the postponement is the subject of the sections that follow the treatment of the exceptions and of reservation.

How a Commission Works: The Making of an Order

The Acts describe a procedure, and the procedure explains the product. A commission begins from the census, not from the previous map. The governing census supplies the population of every district and sub-district unit in the state, and the commission’s first task is arithmetic: the state’s allotment of seats, fixed in a frozen exercise by the provisos and in a full exercise by the ratio rule, is divided into the state’s population to yield the average population of a constituency, and every line the commission then draws is tested against that average. Districts are grouped or divided, assembly segments are assembled into parliamentary constituencies of near equal population, and the reserved seats are placed according to the proportions of the Scheduled Caste and Scheduled Tribe populations recorded in the same census. The raw material is therefore administrative geography read through demographic data, and the commission works with the maps and tables of the Census organisation and the state governments, through a secretariat drawn substantially from the Election Commission, whose ex officio member sits on the commission itself.

The second stage is consultative, and the Acts prescribe it in detail because the finality of the orders leaves no later stage at which error can be corrected. The commission associates the ten associate members for the state with its deliberations, frames proposals for the delimitation of the state’s constituencies, and publishes those proposals in the Gazette of India and in the official gazette of the state, together with any dissenting proposals of associate members who wish theirs published. It specifies a date on or after which the proposals will be further considered, receives objections and suggestions from the public, and holds public sittings in the state at which objectors are heard. The commission of 2002 conducted this cycle state by state across the whole Union, a process that consumed the better part of six years from its constitution in July 2002 to the taking effect of its orders in February and March 2008, and the scale of the undertaking explains the span: five hundred and forty three parliamentary constituencies and more than four thousand assembly constituencies had to be examined, most of them drawn afresh, against objections that arrived from political parties, local bodies and individual citizens in every district. The associate members’ dissents, published with the proposals, are the visible record of the political pressures the procedure is designed to absorb and answer in public rather than to exclude.

The third stage is determination. Having considered the objections, the commission settles the delimitation and issues its orders, which are published in the Gazette and acquire the force of law on publication. An order is a legal instrument of a distinctive kind: it describes each constituency by the administrative units it comprises, names it, and records whether it is reserved and for which category, so that the whole electoral geography of a state can be reconstructed from the order alone. The President then specifies the date from which the readjustment takes effect for elections, and the Election Commission folds the new constituencies into the electoral rolls and the conduct of the next elections. Nothing in the process invites the legislatures to participate beyond the associate membership and the formal laying of the orders, and that exclusion is deliberate and of a piece with the judicial chairmanship and the bar on court challenges: the system locates the drawing of the map in a body that no interested institution can direct, at the price of making its procedure, rather than any appeal from its product, the citizen’s security. The commission that sits after the freeze lapses will work by the same stages, with one addition of scale that no predecessor faced: its first order of business will be the allocation among the states, the question on which associate members, objectors and governments will have the most to say and on which the commission’s own authority, bounded by the ratio rule and the ceiling of Article 81, will be narrowest.

The evidentiary character of the work deserves emphasis, because it separates delimitation from the redistricting practices that attract controversy elsewhere. The commission does not survey opinion about where lines should run; it applies stated criteria to published data. Its raw questions are factual: what the census counted in each administrative unit, where the boundaries of those units run, which units a river, a railway or a mountain range divides, and where the Scheduled Caste and Scheduled Tribe populations are concentrated. Its discretionary questions are confined to the choices the criteria leave open, the grouping of borderline units, the naming of constituencies, the placement of a reserved seat between two areas of comparable proportion. The public sittings test the facts and the local consequences of the choices, and the commission’s published reasoning answers objections in those terms. A body so confined can be given finality without offence to the legal order, because its orders are, in form and largely in substance, the application of a rule to a count. The allocation question that awaits the next commission fits that form less comfortably, since the count is not in dispute and the rule, the ratio of Article 81, points one way while the ceiling and the transition point in others; the strain that the readjustment will place on the Delimitation Act model lies there, in the gap between applying a settlement and appearing to make one.

The Exceptions: Four States Deferred and One State Set Aside

The general account of the 2002 exercise requires an immediate qualification, because the commission’s orders did not take effect uniformly across the Union. The Delimitation Act, 2002 had been amended by the insertion of a tenth section A, under which the President could defer the delimitation exercise in a state where the President was satisfied that a situation hostile to the conduct of the exercise existed. By four orders dated 8 February 2008, the President deferred delimitation in Assam, Arunachal Pradesh, Manipur and Nagaland, states in which insurgency, disputes over the census figures themselves, and contested questions of tribal representation made the drawing of boundaries a matter of security no less than of arithmetic. A further provision, the tenth section B, dealt with Jharkhand alone: it nullified the commission’s orders for that state, so that the constituencies delimited a generation earlier continued in force there while the rest of the participating states moved to the map of 2008. The result was a Union electing its House of the People on three vintages of map at once: boundaries of 2008 for most states, boundaries of 1976 for Jharkhand and the four deferred states, and, within every state, an allocation of seats that reached back to the census of 1971.

The deferred exercises were completed later and by routes that show the flexibility of the statutory scheme. The deferral for Assam was withdrawn in 2020, and the delimitation of that state was carried out by the Election Commission under the eighth section A of the Representation of the People Act, 1950, on the figures of the census of 2001 as Articles 82 and 170 required. The final order, published on 11 August 2023, retained the state’s fourteen seats in the House of the People and one hundred and twenty six seats in its legislative assembly, reserved nineteen assembly seats and two parliamentary seats for the Scheduled Tribes and nine assembly seats and one parliamentary seat for the Scheduled Castes, and revised the names of a number of constituencies. Assam’s previous delimitation had been the exercise of 1976, so the state passed directly from the boundaries of the nineteen seventies to a map drawn nearly half a century later, without its representation in Parliament changing by a single seat. For Jammu and Kashmir, reconstituted as a Union territory by the Jammu and Kashmir Reorganisation Act, 2019, a Delimitation Commission was constituted on 6 March 2020 under the chairpersonship of Justice Ranjana Prakash Desai, initially for that territory and the four deferred north eastern states; the four states were removed from its remit in March 2021, and its final order for Jammu and Kashmir was made in 2022, increasing the size of the territory’s legislative assembly and reserving seats for the Scheduled Castes and, for the first time in that legislature, the Scheduled Tribes. The machinery of the Delimitation Acts, designed for decennial national exercises, proved capable of being set in motion for a single territory when the constitutional situation required it.

The deferred and separate exercises have a longer ancestry than the round of 2002 suggests. The Act of 1972 remained the framework under which the constituencies of Goa, Mizoram and Arunachal Pradesh were delimited when those states were formed in the nineteen eighties, and the history of the subject is punctuated by such single state exercises, each occasioned by a change in the map of the Union rather than by a census. The pattern matters for the period after the freeze lapses. A general readjustment will not prevent particular exercises from being needed on their own occasions, and the law’s ability to run the machinery for one state or one territory, through a commission or through the Election Commission under the eighth section A of the Act of 1950, is a standing feature of the scheme rather than an improvisation of the deferred round.

Reserved Seats: Articles 330 and 332 and the Drawing of Reserved Constituencies

Reservation of seats in the legislatures operates through delimitation, and cannot be understood apart from it. Article 330 reserves seats for the Scheduled Castes and for the Scheduled Tribes in the House of the People, and Article 332 makes the corresponding provision for the legislative assembly of every state. The number of seats reserved in a state is not fixed by the Constitution in absolute terms. It is a proportion: the seats reserved for the Scheduled Castes are to bear, as nearly as may be, the same proportion to the total number of seats allotted to the state as the population of the Scheduled Castes in the state bears to its total population, and the same rule holds for the Scheduled Tribes. Because the proportions move with every census, every delimitation is also a re-determination of the reserved map, and the decision which particular constituencies carry the reservation is among the most consequential choices a commission makes. A seat reserved is a seat from which only a member of the reserved category may be elected, though every elector of the constituency votes; moving the reservation from one constituency to another changes the political geography of the reserved communities as surely as moving a boundary does.

The governing reservation ceiling jurisprudence of the Supreme Court, developed for public employment and education, does not supply the rule for this exercise: legislative reservation under Articles 330 and 332 rests on proportion to population, and the Delimitation Acts translate that proportion into geography through the placement principles of their ninth sections. Seats reserved for the Scheduled Castes are to be distributed in different parts of the state rather than concentrated in one region, and located, as far as practicable, in areas where the proportion of the Scheduled Caste population to the total population is comparatively large. Seats reserved for the Scheduled Tribes follow the stricter pull of concentration: they are to be located, as far as practicable, in areas where the proportion of the Scheduled Tribe population is the largest. The two principles differ deliberately. A dispersed community is represented by spreading its reserved seats across the state where its numbers are relatively strongest; a concentrated community is represented by reserving the seats where it forms the largest share of the local population, which in practice ties tribal reservation to the scheduled areas and the districts of tribal majority or plurality.

How many seats are reserved for the Scheduled Castes and the Scheduled Tribes in the House of the People?

Under the delimitation order of 2008, which governs the composition of the House of the People, eighty four seats are reserved for the Scheduled Castes and forty seven for the Scheduled Tribes out of five hundred and forty three elected seats, against seventy nine and forty one respectively under the order of 1976 that preceded it.

The revision of 2008 shows the machinery working as designed. The commission of 2002 applied the proportions of the census of 2001, state by state, to the frozen totals of seats, and the all-India result was an increase in reserved seats for both categories, from 79 to 84 for the Scheduled Castes and from 41 to 47 for the Scheduled Tribes, as proportions shifted between states and within them. The aggregate numbers conceal the distributive reality that the commissions manage: a state whose Scheduled Caste proportion rose gained reserved seats at the expense of its own open seats, constituencies that had elected reserved representatives for three decades returned to the open pool, and constituencies that had never been reserved acquired the restriction. The political sensitivity of these movements is one reason the Acts surround the commission with finality: a revisable map of reserved seats, open to legislative bargaining state by state, would invite exactly the contestation that the placement principles are drafted to discipline. It is also why the interaction between delimitation and reservation extends beyond the Scheduled Castes and the Scheduled Tribes. The reservation for women enacted in 2023 is delivered through the same machinery, as a later section explains, and its commencement is tied by its own text to the completion of a delimitation exercise, so that the drawing of reserved seats for women awaits the same census and the same commission that will redraw everything else.

Finality: Article 329, the Acts and the Courts

No feature of the Delimitation Acts is more striking to a reader accustomed to ordinary legislation than the completeness of the finality they confer. The orders of a commission are not recommendations to Parliament, not subordinate legislation open to annulment by resolution, and not administrative action reviewable for reasonableness. The tenth section of the Act of 2002 states the position in the same terms its predecessors used: upon publication in the Gazette of India, every order shall have the force of law and shall not be called in question in any court. The orders are laid before the legislatures, which may debate them but cannot modify a comma of them. They take effect for elections on the date the President specifies, and they supersede the delimitation provisions of the Representation of the People Act, 1950 and every earlier order. Behind the statute stands the Constitution itself. Clause (a) of Article 329 provides that, notwithstanding anything in the Constitution, the validity of any law relating to the delimitation of constituencies or the allotment of seats to such constituencies, made or purporting to be made under Article 327 or Article 328, shall not be called in question in any court. The bar is therefore doubled: the commission’s orders are protected by the Act that creates them and by the constitutional clause that withdraws the subject from judicial enquiry.

The Supreme Court confronted the finality provisions in Meghraj Kothari v. Delimitation Commission, (1967) 1 SCR 400, a challenge arising from the work of the commission constituted under the Act of 1962. The Court held that the orders of a Delimitation Commission, having the force of law, stand beyond challenge in the ordinary way, and that the scheme of the Acts commits the drawing of constituencies to the commission alone, with the courts confined to the narrowest class of case, one of manifest jurisdictional error, such as an order made without authority or in disregard of the statute’s own conditions. The reasoning matches the design. Delimitation determines the units within which all other electoral disputes arise; if every boundary were litigable, the map itself would be perpetually provisional, elections would be held under injunctions, and the commission’s independence, guarded by its judicial chairmanship and by the exclusion of any legislative power of modification, would be defeated by the forum the Acts withhold. The narrow exception for jurisdictional error is the acknowledgement that the commission is a creature of its statute and must act within it, not a licence to re-argue the merits of a boundary.

Finality has a practical consequence that readers of the orders should register. The text of the law on any constituency question is the order itself, published in the Gazette, as maintained up to date by the Election Commission under its correction power; commentary, including this article, is an account of that law and not a substitute for it, and a person whose rights turn on the boundary or reservation status of a particular constituency should work from the order and take advice on it. The description of a constituency in a delimitation order, read with the tables that accompany it, is conclusive of what the constituency contains. That is an unusual hardness for a legal instrument produced by a temporary body, and it explains why the Acts prescribe the commission’s procedure with such care: publication of proposals, a date for consideration, the receipt of objections and suggestions, and public sittings in every state are the whole of the citizen’s procedural entitlement, front loaded into the making of the order because nothing is available after it.

The contrast with the neighbouring branch of election law fixes the boundary of the bar. Clause (b) of Article 329 provides that no election to either House of Parliament or to a state legislature shall be called in question except by an election petition presented in the manner the law provides, the route the Representation of the People Act, 1951 supplies and the companion articles in this series examine. An election petition can unseat a returned candidate for corrupt practice, for wrongful rejection of a nomination, for a result materially affected by irregularity; what it cannot do is reach the map. A constituency wrongly drawn, a reserved seat arguably misplaced, an allocation arguably stale: none of these is a ground on which an election conducted within the constituency as delimited can be disturbed, because the order that drew the constituency is law, and the petition tries the election, not the law. The two clauses of Article 329 thus divide the field between them. The conduct of elections is justiciable through a single, specialised and time bound remedy; the delimitation of the constituencies in which elections are conducted is withdrawn from the courts altogether, and the scheme has stood since the Constitution commenced without the courts reading a general review power back into it.

Fifty Years of a Frozen Map

The chronology of the subject is a legal chronology, and it repays being read in one view. Each stage in the table below is an instrument, an amendment or an order, and the two right hand columns record the discipline the whole history teaches: at every stage, the text specified exactly what could change and what could not, and the politics of delimitation has largely been an argument about which column a given proposal belongs in.

Stage	Instrument	What could be changed	What could not be changed
The original design, 1950	Articles 81, 82 and 170 as enacted	The allocation of seats among states and the division into constituencies, readjusted after every census	Representation in a sitting House before its dissolution
The freeze, 1976	The Constitution (Forty-second Amendment) Act, 1976	Nothing in the allocation; it was fixed on the census of 1971 until the first census after 2000	The duty to resume readjustment once that census was taken and its figures published
The extension, 2001	The Constitution (Eighty-fourth Amendment) Act, 2001	Constituency boundaries within states, and the reservation of seats, without altering state totals	The allocation of seats among states, frozen until the first census after 2026
The census basis, 2003	The Constitution (Eighty-seventh Amendment) Act, 2003	The data for the within-state exercise, moved from the census of 1991 to the census of 2001	The frozen allocation, which the amendment did not touch
The fourth exercise, 2002 to 2008	The Delimitation Act, 2002 and the orders of the commission chaired by Justice Kuldip Singh	Every constituency boundary within the participating states and the placement of reserved seats, on the census of 2001	The number of seats of any state, and the orders themselves, which no legislature could modify and no court could question
The women’s reservation amendment, 2023	The Constitution (One Hundred and Sixth Amendment) Act, 2023	The composition of the House and the assemblies, by reserving nearly one third of seats for women, once its condition is met	Its own commencement, which the amendment ties to a delimitation following the first census after its commencement
The lapse of the freeze	The provisos to Articles 81, 82 and 170, on publication of the figures of the first census taken after 2026	The allocation of seats among states becomes readjustable, and readjustment becomes a duty again	The ceiling of five hundred and fifty elected seats in Article 81, unless that article is itself amended

Read as a whole, the table disciplines two habits of loose description. The freeze does not expire in the year 2026: nothing in the provisos turns on that year itself, and they lapse on the publication of the relevant figures of the first census taken after that year, an event that depends on the census being held and its figures being published. And the exercise of 2002 to 2008 did not change the allocation of seats among the states: it changed every boundary inside them, which is a different thing, and the difference is the whole substance of the settlement under which the House of the People is elected.

Reading a Delimitation Order

A delimitation order is written to be used by returning officers and electors rather than to be read as literature, and a reader who approaches one for the first time should know its anatomy. The order proceeds state by state. For each state it states the number of seats in the House of the People and in the legislative assembly, the number of seats reserved for the Scheduled Castes and for the Scheduled Tribes, and then, constituency by constituency, the extent of every constituency expressed through the administrative units that compose it: districts, sub-divisions, tehsils or taluks, municipalities, wards and, where a unit is divided, the part of it that falls within the constituency. The name of the constituency and its reservation status appear against its extent. Around the operative tables sit the commission’s account of its work: the proposals it published, the objections it received, the sittings it held and the reasoning by which disputed boundaries were settled, including the dissenting proposals of associate members that the Acts require to be published. That surrounding record is the only legislative history the instrument has, and it is the place to look when a boundary appears anomalous, since the commission’s reasons for joining or dividing administrative units are recorded there rather than in the tables.

Two practical consequences follow from the form. The first is that a constituency has no legal description apart from the order: a constituency is the area the order says it is, and questions about which assembly segment falls within which parliamentary constituency, or whether a locality votes in a reserved seat, are answered from the order and from nothing else. The second is that the order and the electoral roll are different instruments doing different work. The roll, prepared under the Representation of the People Act, 1950 for each constituency, records who the electors of the constituency are; the order records what the constituency is. Delimitation changes the second and leaves the first to be rebuilt on the new map by the registration machinery, which is why a general election is never held in the immediate aftermath of an order’s publication and why the Acts protect the sitting House while the machinery catches up. The commission that sits after the freeze lapses will produce an instrument of the same anatomy at a larger scale of consequence, since its tables will state, for the first time in fifty years, a new number against the name of every large state.

Publication deserves a closing emphasis, because the Gazette is not a formality in this scheme but the operative moment of the law. An order binds from its publication in the Gazette of India; the laying before the legislatures that follows is a courtesy to the institutions whose map it is, carrying no power of change; the date the President specifies for the readjustment’s effect orders the transition to the elections that will use it. Anyone advising on a constituency question therefore dates every proposition from the Gazette: which order was in force, when it was published, from when the President gave it effect, and whether the Election Commission has since maintained it by a correction notification. The discipline is the same one this article has applied to the amendments and the census. In delimitation law, an event counts when the instrument recording it is published, and almost every error in the public discussion of the subject, the freeze expiring in a year rather than on a publication, the reservation commencing with an amendment rather than with an exercise, is a failure to observe that single rule.

Life Under the Frozen Map

The settlement described in the preceding sections has governed the election of the House of the People for a span longer than the period of regular delimitation that preceded it, and its effects are structural rather than episodic. The equality principle of Article 81 operates in the system in a divided form. Within each state, it operates with full force: the commission of 2002 equalised constituency populations on the census of 2001, and the electors of a state choose among constituencies of broadly comparable size. Between states, the principle is suspended by design: the allocation of seats reflects the population distribution of 1971, while the population distribution itself has moved for five decades. The census of 2011 recorded a country in which the demographic transitions of the states stood at very different points, some states having completed the move to low fertility a generation ago and others remaining in rapid growth, so that the number of persons represented by a member of the House of the People differs markedly according to the state the member comes from. A member returned from a high growth state speaks for a far larger population than a member returned from a state whose growth has stabilised, and both sit in the same chamber with one vote each. That divergence is not a malfunction of the frozen map; it is the frozen map, the measurable price of the assurance given in 1976 and renewed in 2001.

The freeze also redistributed the burden of representation in ways that reach beyond the chamber. Fiscal devolution, the sharing of central taxes among the states through the recommendations of the Finance Commission, long used the census of 1971 as its population reference for the same policy reason that animated the freeze: to avoid penalising states that had curbed growth. The Fifteenth Finance Commission was directed by its terms of reference to use the census of 2011, and it answered the equity objection in part by including a criterion of demographic performance in its formula, rewarding states for movement towards replacement fertility while distributing the larger share by measures that included the population of 2011. The contrast is instructive for the delimitation question. In the fiscal field, the system found a way to leave the census of 1971 behind while cushioning the consequences for states that lost share, by mixing criteria. In the field of seats, no such mixing is available within the constitutional text as it stands: Article 81 allots seats by population ratio, the provisos freeze the reference year, and the only variables open to a settlement are the size of the House, the duration of the freeze, and compensating arrangements outside the House of the People altogether. The options examined below are best understood as attempts to import into the law of seats the kind of cushioning that the law of finance achieved by formula.

A further consequence is quieter but pervasive. Because the allocation among states cannot change, the politics of delimitation inside a state carries the whole weight of demographic change. Population moves within states as well as between them, towards cities and industrial corridors and away from districts in decline, and the commission of 2002 captured one moment of that movement on the census of 2001. Constituencies drawn then have themselves aged through two further decades of internal migration, so that the equality the exercise restored within states has eroded on the ground even though the orders remain legally exact. The machine was built to run after every census precisely because no single drawing can hold its equality for long. Running it once in thirty years, on a census already seven years old when the orders took effect, and inside a frozen allocation, produced a map that is constitutionally impeccable and demographically antique at two levels at once. That condition frames the question the lapse of the freeze will pose: not simply how to distribute seats among the states on a fresh census, but how to restore a rhythm of adjustment that the Constitution designed and the freeze interrupted.

The frozen map governs the assemblies as completely as it governs the House of the People, and the state level record sharpens the point. The totals of assembly seats were frozen with the parliamentary allocation, so a state whose population has grown rapidly elects the same number of legislators, to constituencies of swelling size, as it elected two generations ago, while the internal distribution of those seats, redrawn in 2008 on the census of 2001, ages in the same way as the parliamentary map within the state. The ratio principle of Article 170 presses on all of this with an admitted inequality: the Constitution fixes assembly size between sixty and five hundred members, and the smallest states sit at or beneath the floor by special arrangement, so that the per capita representation of a citizen of a small state exceeds that of a citizen of a large one by design as well as by demographic drift. The system has always tolerated a measure of deliberate over representation for small and strategically placed states, in the assemblies as in the allotment of seats in the Council of States, as the price of holding a diverse Union together. That tolerance is part of the context in which the readjustment debate is conducted: the equality demanded by the case for readjustment has never in practice been absolute at the edges of the system, and the states resisting readjustment are entitled to point to the edges when the principle is stated in absolute form, just as the proponents of readjustment are entitled to answer that a tolerated margin for small states is a different thing from a five decade suspension of the rule for the largest units of the Union.

The Frozen Baseline: The Allocation of 1971 in Numbers

The frozen allocation is an abstraction until its figures are stated, and the figures explain the politics better than any argument. The order of 1976, retained through every later exercise, allots eighty seats in the House of the People to Uttar Pradesh, the largest allotment of any state, and forty to Bihar. The five southern states hold between them one hundred and twenty nine of the five hundred and forty three elected seats: thirty nine for Tamil Nadu, twenty eight for Karnataka, twenty five for Andhra Pradesh, seventeen for Telangana and twenty for Kerala, the shares of Andhra Pradesh and Telangana having been divided between the successor states when the erstwhile Andhra Pradesh was bifurcated in 2014, without any fresh census and without any change to their combined total. These numbers were proportionate when they were struck. On the population distribution of the census of 1971, each of them represented roughly the same population per seat as every other, subject to the rounding that indivisible seats impose and the protection the practicability qualifier gives to small states. Their meaning has changed because the populations beneath them have grown at different rates for fifty years, so that the same numbers encode very different ratios of persons to seats.

The point can be put in aggregate without any projection at all, using only published census figures. The census of 2011 counted about 1,211 million persons in India, against about 548 million at the census of 1971. A House of five hundred and forty three members therefore carried, on the average, roughly one million persons per seat on the earlier count and roughly 2.2 million persons per seat on the later one, and the averages conceal the spread: states whose populations more than doubled across the interval sit far above the later average in persons per seat, and states whose growth was restrained sit below it. Nothing in that arithmetic is a projection, and neither side of the debate disputes it. The dispute is about what follows: whether the divergence is the tolerable price of a promise, to be managed by the design of the transition, or an inequality between citizens that the constitutional text, read as a whole, does not permit to be renewed. When the figures of the first census taken after 2026 are published, the same computation will be run on them by every participant in the debate within days. The law’s contribution is to specify the instrument that must then act on the result, the commission, and the constraints within which it must act, the ratio rule, the ceiling, the reservation proportions and the protection of the sitting House. Those constraints, and not the arithmetic, are what the Delimitation Acts exist to supply.

The Census: The Instrument on Which Everything Turns

Every operative concept in this article is keyed to the census, and the census is itself a statutory exercise whose character shapes the law built on it. The census of India is conducted under the Census Act, 1948, by the Registrar General and Census Commissioner, through the state administrations, on a reference date notified for each enumeration. Since 1881 the enumeration has been decennial, and the constitutional scheme was drafted on that rhythm: Article 82 speaks of the completion of each census because the framers could assume a fresh count every ten years, complete with published figures down to the smallest administrative unit, on which a commission could work. The figures that matter for delimitation are not the headline totals but the published tables, the population of every district, sub-district and town, broken down by the categories the Constitution makes relevant, including the populations of the Scheduled Castes and the Scheduled Tribes, from which the proportions for reserved seats are computed. A census whose figures were not published in that form would satisfy no proviso and feed no commission, which is why the provisos make publication, rather than the taking of the census alone, the operative event.

The postponement of the decennial census due in 2021 broke the rhythm for the first time in the history of the series, and its consequences run through the whole subject. For the freeze, the consequence is clarifying: the trigger is the first census taken after the year 2026, and a census due in 2021, whenever it is completed, is not a census taken after 2026, so its figures, even when published, cannot lapse the freeze or ground a readjustment of the allocation. For the women’s reservation, the census that Article 334A requires is the first census taken after the commencement of the One Hundred and Sixth Amendment, and the two conditions will in any realistic sequence be satisfied by the same enumeration, the first census actually conducted after 2026. For the commissions of the future, the consequence is practical: the longer the interval since the governing enumeration, the more the map drawn from it will diverge from the population on the ground, and a system designed for a ten year cycle will be working, at the readjustment to come, from an enumeration that follows a gap of more than fifteen years since the census of 2011. Projections and estimates, however sophisticated, have no standing in this scheme: the Sample Registration System and the National Family Health Survey measure demographic change, and demographers build projections from them, but the Constitution allots seats on the ascertained figures of a census of which the relevant figures have been published, and no commission may substitute a projection for a count. That insistence on an actual enumeration, publicly published, is one of the oldest features of the design, and it is the reason the delimitation question cannot be answered early by arithmetic alone.

What the Text Requires When the Freeze Lapses

The lapse of the freeze will not arrive as a political announcement. It will arrive as the satisfaction of a condition in a constitutional proviso. The provisos to Articles 81, 82 and 170 suspend the readjustment of the allocation of seats and hold the meaning of population to the census of 1971 until the relevant figures for the first census taken after the year 2026 have been published. Three elements of that trigger deserve precision, because public discussion habitually blurs all three. The census must be taken after the year 2026: a census completed in or before that year, including the decennial census due in 2021 and postponed, does not satisfy the condition. The figures must be the relevant figures for that census, published: the trigger is publication, not the enumeration itself. And what lapses is a suspension, not the underlying rule. The main obligation of Article 82, that upon the completion of each census the allocation of seats and the division into constituencies shall be readjusted by such authority and in such manner as Parliament may by law determine, stands in the text throughout the freeze, dormant rather than repealed. When the condition is satisfied, the duty revives in full, and it extends to the allocation among states that two generations of commissions have never touched.

The sequence that follows is prescribed by the accumulated practice of the four Acts. Parliament enacts a Delimitation Act for the exercise, defining the census whose figures govern, constituting the commission under judicial chairmanship, prescribing its principles and procedure, and clothing its orders with finality. The commission publishes proposals, hears objections and suggestions at public sittings, and determines the delimitation by orders published in the Gazette, which take effect for elections held after the date specified and leave the sitting House untouched until its dissolution. Every part of that sequence is familiar. What is unfamiliar, and what no living commission has done, is the first item of the agenda: the allocation itself. A commission charged with readjusting the allocation among the states on a fresh census confronts Article 81 in both its aspects, the ratio rule and the ceiling. The ratio rule will allot seats by population share. The ceiling confines the elected membership of the House to five hundred and fifty. Within a House held at or near its present strength of five hundred and forty three, readjustment is a zero sum operation across states: seats gained by states whose population share has risen are seats lost by states whose share has fallen, and the proportions recorded by any fresh census after fifty years of divergence guarantee that the movements will be large.

The scale of the movement is a matter of projection, and projections must be read as the work of their authors rather than as findings of fact. Milan Vaishnav and Jamie Hintson of the Carnegie Endowment for International Peace, projecting from census and survey data in a study published in 2019, calculated that a House held at its present size and allotted strictly by population would see four northern states, Bihar, Madhya Pradesh, Rajasthan and Uttar Pradesh, gain twenty two seats between them, while four southern states, Andhra Pradesh, Kerala, Telangana and Tamil Nadu, would lose seventeen between them; other research bodies working from the census of 2011 and from later population estimates have produced figures of the same shape with different magnitudes. The direction of these projections is not seriously in dispute among demographers, because it follows from fertility differentials that the census and the Sample Registration System have recorded for decades. Their magnitude depends on the census year used, the size of the House assumed, and the treatment of states that would fall below one seat’s worth of population, and any figure quoted without those assumptions stated is advocacy rather than analysis. What the legal reader should take from the projections is the structural point: the readjustment that Article 82 will require is large enough, relative to the political weight of the states concerned, that the two arguments set out in the next sections are inevitable, and strong enough that the search for a settlement that avoids absolute losses has become the centre of the subject.

The ceiling deserves a final word of precision, because it converts the political question into an arithmetical one at a definite point. At a House of five hundred and fifty, the maximum the unamended Article 81 allows, a readjustment on a fresh census would still be a transfer among states of the same order as a readjustment at five hundred and forty three; the seven seats of headroom are too few to alter any state’s position materially. Enlargement as a cushion therefore begins, in practice, at the amendment of Article 81, and every enlargement scenario in the debate is in truth two proposals wearing one description: a decision about how large the House should be, and a decision about the shares in which its seats should be held. The first decision is constrained by the chamber, by the working of a legislature whose members must be able to deliberate, and by the assembly parallel, since a House of the People enlarged several fold would sit oddly beside assemblies whose own totals the same exercise would be readjusting under Article 170. The second decision is the federal bargain itself. A commission appointed under a future Delimitation Act will have no authority over either decision: the Act that constitutes it will already embody them, in the total it prescribes and the basis it names, and the commission’s celebrated independence will operate, as it operated in 2002, inside a settlement made by the amending and legislating process before the commission first sits. That is the deepest structural fact in the subject. Delimitation decides boundaries; the Constitution, amended or unamended, decides everything else.

The Case for Readjustment, Stated in Full

The case for readjustment on the population of a fresh census is, at its root, a textual case, and its proponents state it as one. Article 81 does not commend equality of representation as an aspiration; it enacts it as the rule of allotment, directing that the ratio between the number of seats and the population of a state be, so far as practicable, the same for all states, and Article 82 commands readjustment upon the completion of each census. The freeze is expressed in provisos, and a proviso suspends; it does not repeal. On this reading, the constitutional morality of the matter is straightforward: the equality rule is the principle, the freeze is the exception, and an exception justified in 1976 as a temporary incentive has, through two extensions and five decades, hardened into a standing departure from the principle it was meant to serve briefly. Proponents add the democratic premise beneath the text. Representation in a legislature elected by universal suffrage rests on the equal weight of citizens, and a settlement under which an elector in one state is represented by a member shared with far fewer fellow electors than an elector in another state maintains, in the composition of the national legislature, an inequality between citizens that no other part of the constitutional scheme would tolerate. The malapportionment is not incidental or small; it is the designed outcome of the freeze, growing wider with every year the underlying populations diverge.

The proponents’ case also answers the charge of bad faith directly. The assurance of 1976, they point out, had a term: the states were promised protection until the first census after the year 2000, and when that term expired the promise was renegotiated and extended to the first census after 2026. A state that accepted the extension accepted, in the same instrument, the date of its ending. To treat the freeze as a permanent entitlement is to read into the bargain a term its text contradicts, and to convert a transitional device, of a kind the Constitution uses in many places, into an irreversible transfer of representation from the citizens of some states to the citizens of others. Nor, on this view, is population policy the only public good at stake. Representation delayed is not representation denied only to states as corporate entities; it is denied to the electors of the under represented states, most of whom had no part in the demographic history for which the allocation is said to compensate anyone. The remedy the text prescribes is the one the text has always prescribed: count the people, allot the seats by the count, and let a commission under judicial chairmanship, insulated from the legislatures by the finality provisions, draw the map that follows.

The case gains a further edge from a comparison the objecting states themselves rely on in another field. Within every state, no one proposes that constituency populations be allowed to diverge without limit in the name of stability: the commission of 2002 redrew internal boundaries precisely because constituencies of greatly unequal population offend the premise of equal suffrage, and that redraw was welcomed in the states that resist its interstate counterpart. The proponents of readjustment press the question why equality is a principle inside a state and a negotiable preference between states, when both propositions rest on the same words in Article 81 and when the electors whose weight is unequal are, in both cases, citizens voting for the same chamber. They point, finally, to the direction of travel in the Union’s other population linked arrangements: fiscal devolution has moved to the census of 2011, the machinery of government plans on the data of the present population, and the composition of the national legislature stands as the single large institution still constituted by the count of 1971, an anomaly that each passing census makes harder to present as a considered settlement rather than as an inheritance no majority wishes to disturb.

The Case for the Bargain, Stated in Full

The case made by the states that reduced population growth is also, at its root, a case about fidelity to a constitutional settlement, and its proponents state it with equal textual seriousness. The freeze was not imposed on the states; it was the Union’s own instrument, adopted because the Union had made population limitation a national objective and asked the states to pursue it. The states that complied did so through decades of public investment in health, education and family planning services, and their compliance is recorded in the demographic data itself: fertility at or below replacement level, achieved a generation ahead of the national average. The assurance on which they acted was the operative term of a national bargain, that success in the shared enterprise would not cost a state its voice in the councils of the Union. Readjustment on population alone, the argument runs, collects the benefit of that compliance twice over: the complying states first bore the cost of the transition, in slower growing electorates and ageing populations, and are then asked to surrender representation as the reward. A federation that punishes compliance with its own declared policies teaches its units that national objectives are traps, and the lesson will be remembered in every future field, from public health to fiscal discipline, in which the Union asks states to act against their short term political interest.

The proponents of this case resist the framing of the question as one of arithmetic alone. Representation of states in the House of the People is a federal institution as well as a democratic one: the House is a chamber of the citizens and also the chamber in which the constituent units of the Union are present as units, and its composition was a term of the federal compact no less than the composition of the Council of States. The states that object to fresh delimitation point, in this connection, to the whole pattern of their position in the Union’s affairs: they contribute a share of national revenue larger than their share of population, they receive back through fiscal devolution a share disciplined by formulas that have themselves moved to the census of 2011, and they face a reduction in the one currency that cannot be compensated by formula, their weight in the making of national law. Their objection is not, as it is sometimes caricatured, a claim to permanent over representation. It is a claim that a bargain made by amendment, twice renewed with their concurrence in the federal spirit, cannot be undone in substance by the mere efflux of the time the bargain itself specified, when the condition on which the bargain rested, the convergence of population growth rates, has been achieved by one side and not the other. On this view the honest reading of the settlement of 1976 and 2001 is that the freeze was to last until convergence made readjustment painless, and the Union’s obligation, if readjustment is to proceed, is to construct the terms on which it can proceed without converting a demographic success into a political penalty.

The fiscal history of the Union is, for the proponents of this case, the proof that cushioning is possible when the Union wants it. When the terms of reference of the Fifteenth Finance Commission directed the use of the census of 2011 for tax devolution, the states that stood to lose share did not simply absorb the loss: the Commission built a demographic performance criterion into its formula, so that the move to fresher population data was accompanied by an explicit reward for the transition the objecting states had achieved. The bargain’s proponents draw the moral precisely. A Union that can design a cushion in the distribution of money can design one in the distribution of seats, whether by enlargement, by compensation in the second chamber, or by a phased transition, and a Union that declines to design any cushion while insisting on the arithmetic has made a choice about the federal character of the change, not merely about its timing. The demand, in its most considered form, is not that the count of 1971 govern for ever; it is that the successor settlement be negotiated as the original was, as an amendment carried with the states, rather than allowed to arrive as the automatic consequence of a proviso’s expiry, which would make the most consequential redistribution of representation in the Union’s history the one change to the federal balance that no federal process ever approved.

The two cases share more ground than their public presentation suggests. Both accept that the Constitution is the source of the answer; they differ on which of its commitments, the equality rule of Article 81 or the federal assurance enacted into its provisos, should govern the manner of the transition. Both accept that a commission under the Delimitation Act model is the instrument of any readjustment. And both are argued, in the statements of the governments and parties that hold them, as positions about the terms of a settlement rather than as denials that a settlement is needed. The options that follow are the shapes that settlement might take.

The Council of States and the Fourth Schedule

No account of the options is complete without the second chamber, because the Council of States is the one institution in the constitutional scheme where the states are represented as states, and its composition is the natural site of any compensation a settlement might offer. The allocation of seats among the states in the Council is set out in the Fourth Schedule. It is broadly related to population but deliberately degressive: the largest state has thirty one seats, and the smallest states and several Union territories have one each, so that population is compressed rather than copied, and a small state’s weight in the Council far exceeds its share of the national population. The allocation has never been tied to the census cycle. It changes when states are created or altered, and on no other occasion, which makes it the most stable element in the whole law of representation and, for that reason, the element a negotiator reaches for when stability is what a settlement needs to sell.

Two features of the Council bear directly on the delimitation question. The first is the ratification discipline already noticed: the proviso to Article 368 lists the representation of states in Parliament among the matters requiring ratification by not less than half the state legislatures, and representation in Parliament means representation in both Houses, so that a settlement package touching the Fourth Schedule, the allocation in the House of the People, or the size of either chamber must be carried through the states as well as through Parliament. The second is the asymmetry of the two chambers under the freeze. The House of the People is frozen to the census of 1971 in the name of a bargain about population policy; the Council of States was never unfrozen to any census, its allocation resting on the political settlement of the nineteen fifties as adjusted for the creation of new states. A citizen’s state is therefore represented in Parliament through two different historical strata at once, and arguments that treat the composition of Parliament as a single question of population proportion misdescribe both chambers. The compensation option discussed in the next section draws its plausibility from exactly this stratigraphy: if the House of the People is to be returned to the census, the case runs, the federal chamber is where the Union can acknowledge what the change costs the states that lose share, by an adjustment of the Fourth Schedule that only a ratified amendment can make.

The Options on the Table

Four options recur in the discussion among governments, commissions of experts and commentators, and each can be stated precisely in terms of what it changes and what it leaves alone. The first is enlargement: increase the total size of the House so that the population ratio can be honoured in relative terms while no state loses seats in absolute terms. A larger House dilutes the share of every state whose population grew slowly while raising its number of members, so that the political fact of loss, which no state government can easily carry to its electorate, is avoided even as relative weight shifts. The option has a hard legal edge. The elected strength of the House is capped at five hundred and fifty by Article 81, so any enlargement beyond that figure requires a constitutional amendment of the article itself, with the special majority of Article 368; and the physical chamber sets a practical horizon that its designers anticipated, the chamber of the House of the People in the Parliament House completed in 2023 having been built with seating for eight hundred and eighty eight members. Enlargement resolves the absolute loss problem completely and the relative weight problem not at all: a state whose share of a larger House falls has lost exactly the influence the objecting states fear losing, expressed in percentage rather than in seats.

The second option is proportionate enlargement with frozen shares: increase the size of the House and distribute the increase so that each state’s percentage of the total remains what the census of 1971 made it. This is the freeze continued by other means, and it requires the same constitutional amendment as a formal extension, since the ratio rule of Article 81, once the provisos lapse, allots by the population of the governing census. Its merit, in its proponents’ presentation, is continuity of the federal balance struck in 1971 combined with relief for the most over stretched constituencies, since more members for the same shares means smaller constituencies everywhere. Its defect is the mirror of the first option’s: it preserves in permanent form the inequality between electors that the case for readjustment condemns, and it does so without the incentive justification the original freeze carried, since the shares would no longer be a temporary bridge to convergence but the settled constitution of the House.

The third option is extension: amend the provisos again and carry the freeze to a further census, as was done in 2001. This is the legally simplest route, requiring the amendment of the same provisos that were amended before, and, because the proviso to Article 368 lists the representation of states in Parliament among the matters that require ratification by the legislatures of not less than one half of the states, it is also the route that most plainly requires the consent of the states as a body. Extension buys time and spends legitimacy: each renewal makes the temporary character of the device harder to assert, lengthens the period for which the census of 1971 governs the composition of the legislature, and widens the very divergence that will confront the commission that eventually sits. The fourth option is compensation: let the readjustment proceed in the House of the People, and offset the loss of weight elsewhere, in the composition of the Council of States, whose allocation among states in the Fourth Schedule is itself a federal bargain amendable by the Article 368 procedure with ratification, or in the terms of fiscal devolution, where the Finance Commission’s formula has already shown how a demographic performance criterion can cushion a move to fresher population data. Compensation accepts the arithmetic of the House and negotiates its consequences, which is either its realism or its evasion, depending on whether the objector’s grievance is understood as a loss of weight that can be made good in another currency or as a breach of an assurance that only its own terms can honour.

These options were canvassed in concrete legislative form in 2026, when a package of constitutional amendment bills proposing to raise the ceiling on the strength of the House from five hundred and fifty to eight hundred and fifty and to carry out the readjustment on the figures of the census of 2011, in an enlarged House designed so that the share of no state would fall, was debated and not carried. The episode is recorded here for what it establishes about the legal position, which is the article’s concern: a settlement of the delimitation question that departs from the sequence the provisos prescribe, whether by changing the census that governs or the size of the House or both, is a constitutional amendment project and must run the Article 368 course, including ratification where the proviso to that article applies. Until such a project is carried, the enacted text stands as the earlier sections state it: the freeze lapses on the publication of the figures of the first census taken after 2026, and the duty of readjustment on those figures revives with it.

A variant of the first and third options deserves recording because it answers the transition objection that both leave exposed. A settlement could phase the readjustment: proceed on the fresh census, but cap the movement of any state’s share at each exercise, so that the allocation converges on the population ratio across two or three cycles instead of arriving at it in one. Phasing has no foothold in the constitutional text as it stands, since Article 82 requires readjustment upon the completion of each census and states no staged standard, so a phased settlement, like enlargement beyond the ceiling and like a further freeze, is an amendment project and not an interpretation. Its interest is analytical. It shows that the real choices in the subject are not binary, between the census of 1971 for ever and the whole arithmetic at once, but continuous: the size of the House, the speed of convergence, and the compensation offered outside the House can be combined in any proportion, and every combination that departs from the unamended text must be carried through Article 368 with the ratification its proviso demands. The debate about delimitation is therefore, in the end, a debate about the contents of an amendment that has not yet been moved, conducted in the shadow of a default that operates if no amendment is moved at all.

Women’s Reservation and the Delimitation Condition

The Constitution (One Hundred and Sixth Amendment) Act, 2023, the Nari Shakti Vandan Adhiniyam, reserved seats for women in the House of the People and in the legislative assemblies, and it did so by a route that makes delimitation the gate through which the reform must pass. The amendment inserted Article 330A, reserving, as nearly as may be, one third of the seats filled by direct election in the House of the People for women, including one third of the seats reserved for the Scheduled Castes and the Scheduled Tribes within that total; Article 332A, making the corresponding provision for the legislative assemblies and, through an amendment of Article 239AA, for the National Capital Territory of Delhi; and Article 334A, which governs when the reservation operates. The amendment was brought into force by notification in April 2026. Its operative provisions, however, carry their own commencement condition, written into Article 334A itself: the provisions relating to the reservation of seats for women shall come into effect after an exercise of delimitation is undertaken for this purpose after the relevant figures for the first census taken after the commencement of the amendment have been published. The reservation therefore does not begin on a date. It begins on the completion of a sequence, census, publication of figures, and a delimitation undertaken for the purpose, and it then runs for fifteen years from the commencement of its effect, with the seats reserved for women rotating after each subsequent delimitation in the manner Parliament determines by law. As with the freeze provisos, an existing House is protected: nothing in the new provisions affects representation in a House in being until its dissolution.

The interaction between this amendment and the freeze is the point on which accurate description matters most, because the two instruments are usually discussed apart. The census that Article 334A requires is the first census taken after the amendment’s commencement, and the census whose figures will lapse the freeze is the first census taken after the year 2026. In any realistic sequence these are the same enumeration: one census supplies the figures that revive the duty of readjustment under Article 82 and satisfy the condition for women’s reservation under Article 334A, and one delimitation exercise, conducted by one commission under one Delimitation Act, will perform both tasks at once, redrawing the allocation among states, the boundaries within them, the placement of seats reserved for the Scheduled Castes and the Scheduled Tribes, and the identification of the seats reserved for women. A reform that commanded support across the political spectrum is thereby linked, by the text its authors chose, to the single most contested exercise in the law of representation. Whether that linkage was a deliberate decision to force the delimitation question or a drafting judgment that reserved seats for women could only be identified fairly on a fresh map, its legal effect is plain: the women’s reservation cannot be severed from the readjustment, and every argument about the terms of the readjustment is, in consequence, also an argument about when one third of the seats in the legislatures will be held by women under the reservation.

For the reader of the Delimitation Acts, the amendment adds a drafting lesson to the political one. Parliament in 2023 had three designs available: reservation on the existing map, by identifying women’s seats within the constituencies delimited in 2008; reservation postponed to a date; and reservation tied to a delimitation after a census. It chose the third, the design that maximises the legitimacy of the eventual map, since the seats reserved for women would be identified within constituencies drawn on a fresh enumeration and would rotate on each later delimitation, and that simultaneously maximises the contingency of the reform, since every dispute capable of delaying the census or the readjustment delays the reservation with it. The fifteen year clock of Article 334A runs from the commencement of the reservation’s effect rather than from the amendment, so delay does not consume the reservation’s own term; what delay consumes is the interval during which the legislatures sit without it. The delimitation question and the women’s reservation question are, from the commencement of the amendment, a single question with two constituencies of concern, and accounts that treat either without the other misdescribe the law.

Three details of the design will occupy the commission that eventually sits, and they are worth stating while the exercise is still prospective. The first is layering: the third of seats reserved for women is computed on the whole of the directly elected seats and includes, within itself, a third of the seats reserved for the Scheduled Castes and a third of those reserved for the Scheduled Tribes, so the commission must first fix the reserved map under Articles 330 and 332 on the new census and then identify the women’s seats across both the reserved and the unreserved pools. The second is rotation: because the reserved seats for women rotate after each subsequent delimitation as Parliament provides by law, the identification of women’s seats is not a permanent settlement of particular constituencies but a recurring incident of every future exercise, which gives the Delimitation Acts a permanent new function they never had in the four earlier rounds. The third is the assembly for the National Capital Territory of Delhi, which the amendment reaches through Article 239AA and which stands in the scheme through that article rather than through Article 332A directly, a reminder that the Union territories with legislatures enter the reservation, as they enter delimitation itself, by provisions specific to their constitutional position. None of these details is controversial; all of them are invisible in accounts that report the amendment as a simple promise of one third of seats, and all of them will be decided, in the first instance, by the text of the next Delimitation Act and the commission that works under it.

A Comparative Note: Apportionment in Another Federation

A brief comparison disciplines the Indian debate by showing which of its features are choices and which are necessities of any federal democracy. The United States apportions the seats of its House of Representatives among the states after each decennial census, as its Constitution requires, but it apportions a House whose size Congress fixed by statute at four hundred and thirty five in the Permanent Apportionment Act of 1929, so that every reapportionment is, like an Indian readjustment within a frozen total, a zero sum transfer among the states. Within the states, federal courts enforce a strict equality: Wesberry v. Sanders, decided in 1964, held that congressional districts within a state must be equal in population as nearly as is practicable, the very phrase Article 81 uses, and Reynolds v. Sims, decided the same year, applied equal population to the districts of state legislatures. The American settlement thus separates the two questions India fused: the size of the chamber is a statutory choice made once and defended as permanent, while equality within and among the states is a constitutional command executed after every census without exception, through two centuries in which states have gained and lost seats at every reapportionment.

The United Kingdom offers a third arrangement, instructive because it shares India’s institutional device and differs in its politics. Constituency boundaries there are drawn by independent boundary commissions for each part of the kingdom, working to statutory rules that privilege electoral equality within a permitted variance, and the commissions’ reports were for generations laid before a Parliament that could accept or reject but not redraw them, an echo of the Indian rule that a legislature receives a delimitation order without power to modify it. The Parliamentary Constituencies Act 2020 removed even the vote of approval and made the commissions’ recommendations effective automatically through an Order in Council, completing a trajectory towards the insulation of the map from the legislature that the Indian Acts reached at independence by the different route of finality and force of law. The comparison underlines what the Indian design assumes: that the drawing of constituencies is an exercise in applying rules to data, to be lodged where electoral interest cannot reach it. The Indian difficulty has never been the insulation of the boundary drawer. It is that the rules themselves, the census of reference and the size of the House, are political choices lodged in the constitutional text, and no commission, however insulated, can draw its way out of them.

India’s original design was closer to the American discipline than to the settlement that replaced it. The commissions of 1952, 1963 and 1973 adjusted both the allocation among states and the size of the House after each census, and no state treated a loss of seats, when losses occurred, as a breach of the federal compact. The departure of 1976 was driven by a consideration the American system never entertained, because the United States never made population limitation a national policy to be pursued by its states under a promise of indemnity in representation. The comparison therefore cuts in both directions, and the article draws from it only the structural lesson: a federation must decide, somewhere in its basic law, whether the size of the popular chamber floats with population or is fixed, and whether equality is enforced on a cycle or suspended for a policy. India in 1950 answered both questions one way, and in 1976 answered the second question the other way, for reasons that were stated and temporary. The readjustment to come is the occasion on which both questions are open again at once, and the options on the table are best read as the possible combinations of answers to the two of them.

Delimitation in the Study of Election Law

For the student and the researcher, delimitation rewards being read as a closed statutory system rather than as a chapter of political commentary. The corpus is small and complete: Articles 81, 82, 170, 327, 329, 330, 332 and 334 of the Constitution, the four Delimitation Acts of 1952, 1962, 1972 and 2002, the orders made under them, the amending Acts of 1976, 2001, 2003, 2019 and 2023 that altered the conditions under which the system runs, and a thin line of authority, headed by Meghraj Kothari, on the finality of the orders. The examined errors in the subject are correspondingly stable: the freeze does not end in 2026 but on the publication of the figures of the first census taken after that year; the exercise of 2002 to 2008 changed boundaries and reservation within states and changed no state’s allocation; and the women’s reservation begins not with the amendment’s commencement but after the census and delimitation its own Article 334A prescribes. A reader who holds those three corrections and the sequence of instruments in the chronology above can test any account of the subject, including the projections of commentators, against the texts. The fuller study treatment of election law in this series places delimitation among the neighbouring topics with which examinations habitually combine it, from the Election Commission’s powers to the law of disqualification.

The primary materials are unusually accessible for a subject of this consequence. The orders of the commissions are published in the Gazette and maintained in consolidated form, the census volumes supply the population figures to which the orders are keyed, and the statements of objects and reasons of the amending Acts record, in the Union’s own words, the reasons given at each stage for suspending or reviving the cycle. Readers who work with those materials in bulk, reconciling the tables of a delimitation order against the district tables of a census, will find the files easier to handle with an office file viewer for opening spreadsheet, document and presentation files than with the viewers bundled into most operating systems. The habit worth forming is the one this article has tried to model: for every proposition about seats, ask which instrument enacted it, which census it rests on, and which column of the chronology it belongs in, what could be changed and what could not. Delimitation is a subject in which the projections are loud and the texts are short, and the texts, unusually, settle most of the questions that the projections argue about.

Frequently Asked Questions

Q: What is delimitation and who carries it out?

Delimitation is the fixing of the boundaries of territorial constituencies and the allotment of seats to them for elections to the House of the People and the state legislative assemblies. Article 82 of the Constitution requires the allocation of seats and the division of each state into constituencies to be readjusted after every census by such authority and in such manner as Parliament may by law determine. Parliament determines the manner through a Delimitation Act, and the authority is a Delimitation Commission constituted under that Act, chaired by a person who is or has been a judge of the Supreme Court, sitting with the Chief Election Commissioner or an Election Commissioner nominated by him and the State Election Commissioner of the state concerned. The Commission’s orders have the force of law.

Q: Why are Lok Sabha seats still based on the 1971 census?

Because the Constitution’s text, as amended, directs it. The Constitution (Forty-second Amendment) Act, 1976 froze the allocation of seats among the states on the population of the census of 1971, so that states which succeeded in reducing population growth under the national population policy would not lose representation for their success. The freeze was first set to run until the figures of the first census taken after the year 2000 were published. The Constitution (Eighty-fourth Amendment) Act, 2001 extended it until the figures of the first census taken after the year 2026 are published. Until that event occurs, the reference to population in Articles 81, 82, 170 and 330 is read by the provisos as a reference to the census of 1971.

Q: Which amendments changed the census basis for delimitation?

Three amendments govern the census basis. The Constitution (Forty-second Amendment) Act, 1976 substituted the census of 1971 as the basis for the allocation of seats among states and suspended readjustment of that allocation until after the first census taken after the year 2000. The Constitution (Eighty-fourth Amendment) Act, 2001 extended that suspension to the first census taken after the year 2026 and permitted the readjustment of constituency boundaries within states, initially on the census of 1991, without altering any state’s total of seats. The Constitution (Eighty-seventh Amendment) Act, 2003 substituted the census of 2001 for the census of 1991 as the basis of that within-state exercise, which is the basis the Delimitation Commission of 2002 applied.

Q: What happens when the seat freeze ends after 2026?

The freeze ends not on a date but on an event: the publication of the relevant figures of the first census taken after the year 2026. When those figures are published, the provisos suspending readjustment fall away and the duty in Article 82 revives in full, extending to the allocation of seats among states on the new census. Parliament must then enact a Delimitation Act constituting a commission, which will publish proposals, hear objections and determine the new allocation and boundaries by orders having the force of law. The readjustment will not disturb the House of the People then sitting, which completes its term; the new map governs the elections that follow its dissolution.

Q: How are seats reserved for Scheduled Castes and Tribes drawn?

Articles 330 and 332 fix the number of reserved seats in each state by proportion: the seats reserved for the Scheduled Castes, and separately for the Scheduled Tribes, bear as nearly as may be the same proportion to the state’s total seats as the population of the castes or tribes bears to the state’s total population, measured on the governing census. The Delimitation Acts then place those seats geographically. Seats reserved for the Scheduled Castes are distributed in different parts of the state and located, as far as practicable, where the proportion of the Scheduled Caste population is comparatively large. Seats reserved for the Scheduled Tribes are located where the proportion of the Scheduled Tribe population is the largest.

Q: Can a delimitation order be challenged in court?

In the ordinary way, no. The tenth section of the Delimitation Act, 2002 provides that upon publication in the Gazette of India every order of the Commission shall have the force of law and shall not be called in question in any court, and clause (a) of Article 329 of the Constitution bars any court from questioning the validity of a law relating to the delimitation of constituencies or the allotment of seats. In Meghraj Kothari v. Delimitation Commission, (1967) 1 SCR 400, the Supreme Court upheld that finality, leaving room only for the narrowest class of case, such as an order made in manifest excess of the Commission’s jurisdiction.

Q: What is the link between delimitation and women’s reservation?

The Constitution (One Hundred and Sixth Amendment) Act, 2023 inserted Articles 330A and 332A reserving, as nearly as may be, one third of directly elected seats for women in the House of the People and the state legislative assemblies, and Article 334A governs its commencement. Under Article 334A, the reservation comes into effect only after an exercise of delimitation is undertaken for this purpose after the relevant figures for the first census taken after the amendment’s commencement have been published. Delimitation is therefore the legal gateway to the reservation: the same census whose figures end the seat freeze will supply the basis on which the seats reserved for women are identified.

Q: Why do southern states object to fresh delimitation?

The objection, as the states advancing it state it, is that a bargain is being broken. The freeze of 1976 was the Union’s assurance that states which pursued the national policy of reducing population growth would not lose representation for succeeding, and the southern states that reached replacement level fertility a generation ago acted on that assurance through decades of investment in health and education. A readjustment allotted strictly by population transfers seats from those states to states whose populations grew faster, so that compliance with a national objective is answered with a reduced share of the House of the People. The objection is to the terms of the transition, and its proponents seek a settlement under which no state is penalised for demographic success.

Q: Why was no Delimitation Commission appointed after the 1981 and 1991 censuses?

Because the constitutional occasion for one had been suspended. A Delimitation Commission exists only when Parliament enacts a Delimitation Act for an exercise, and Parliament enacts such an Act to perform the readjustment Article 82 requires after a census. The provisos inserted by the amendment of 1976 suspended that readjustment, for the allocation of seats and for the totals of assembly seats, until the figures of the first census taken after the year 2000 were published. With no readjustment due, no Act was passed after the census of 1981 or the census of 1991, no commission sat, and constituency boundaries remained as the order of 1976 had left them, within states as well as between them.

Q: What is the maximum strength of the House of the People under Article 81?

Article 81 caps the elected membership of the House of the People at five hundred and fifty: not more than five hundred and thirty members chosen by direct election from territorial constituencies in the states, and not more than twenty members to represent the Union territories, chosen in such manner as Parliament may by law provide. The elected strength fixed by the delimitation order of 1976 and retained ever since is five hundred and forty three. Any proposal to enlarge the House beyond five hundred and fifty members, including proposals to enlarge it so that no state loses seats at the next readjustment, must therefore begin by amending Article 81 under Article 368.

Q: What do associate members do in a Delimitation Commission?

For the work of each state, the Delimitation Act, 2002 associates ten members with the Commission: five members of the House of the People representing that state, nominated by the Speaker of that House, and five members of the state legislative assembly, nominated by the Speaker of the assembly. Associate members assist the Commission with knowledge of the constituencies under revision, attend its deliberations for their state, and may record dissenting proposals, which the Act requires to be published with the Commission’s own proposals. Their role is advisory in the strictest statutory sense: the Act provides that none of the associate members shall have a right to vote or to sign any decision of the Commission.

Q: On what principles are constituency boundaries drawn inside a state?

The first principle is population equality within the state: Article 81 requires each state to be divided so that the ratio between the population of each constituency and the number of seats allotted to it is, so far as practicable, the same throughout the state, measured on the governing census. The ninth section of the Delimitation Act, 2002 adds the working principles: constituencies are to be geographically compact, delimited with regard to physical features, existing boundaries of administrative units, facilities of communication and public convenience, and every assembly constituency must fall wholly within one parliamentary constituency. The Commission publishes its proposals, invites objections and suggestions, holds public sittings in the state, and only then determines the boundaries by order.

Q: What is the Delimitation of Parliamentary and Assembly Constituencies Order, 2008?

It is the consolidated order through which the determinations of the Delimitation Commission constituted under the Delimitation Act, 2002 took legal effect for most of the country. The Commission’s orders, published in the Gazette of India, were given effect from 19 February 2008 for most states and Union territories, and from 20 March 2008 for Tripura and Meghalaya. The order of 2008 is the operative legal description of every parliamentary and assembly constituency in the participating states: their extent, their boundaries and their reservation status. It superseded the order of 1976 for those states, and the Election Commission maintains it up to date for corrections and changes in district names and boundaries.

Q: Why were Assam and Jammu and Kashmir delimited separately from the rest of the country?

Assam was one of four states, with Arunachal Pradesh, Manipur and Nagaland, in which the President deferred the delimitation exercise by orders of 8 February 2008 under the tenth section A of the Delimitation Act, 2002, and its delimitation was completed only in 2023, by the Election Commission under the eighth section A of the Representation of the People Act, 1950, after the deferral was withdrawn. Jammu and Kashmir stood outside the Act’s original scheme and was reconstituted as a Union territory by the Jammu and Kashmir Reorganisation Act, 2019, so its constituencies were delimited by a separate commission constituted on 6 March 2020 under Justice Ranjana Prakash Desai, which made its final order in 2022.

Q: What majority and ratification would a further extension of the freeze require?

A further extension would amend the provisos to Articles 81, 82 and 170, and so must travel the course of Article 368: a bill passed in each House of Parliament by a majority of the total membership of that House and by not less than two thirds of the members present and voting. Because the proviso to Article 368 lists the representation of states in Parliament among the matters that require, in addition, ratification by the legislatures of not less than one half of the states, an amendment that holds the states’ representation to the census of 1971 for a further period must also secure that ratification before it is presented for the President’s assent.

Q: Will state legislative assemblies also be readjusted when the freeze lapses?

Yes. The freeze was never confined to the House of the People. Article 170 mirrors Article 82 for the states: the total number of seats in each legislative assembly and the division of the state into territorial constituencies are to be readjusted after each census, and the provisos inserted by the amendments of 1976 and 2001 suspended that readjustment on the same terms and until the same event, the publication of the figures of the first census taken after the year 2026. When the freeze lapses, assembly totals as well as assembly boundaries become readjustable, and the practice of the four earlier exercises is for one commission under one Act to perform both readjustments together.

Q: For how long does the women’s reservation operate once it begins?

Article 334A provides that the reservation of seats for women ceases to have effect on the expiration of fifteen years from the commencement of its operation, that is, from the date the reservation takes effect after the census and delimitation the article prescribes, not from the commencement of the amendment itself. Continuation beyond those fifteen years would require a further constitutional amendment. Within the period, the seats reserved for women are not fixed permanently to the same constituencies: the reservation continues in the constituencies determined under the operative delimitation, and the seats reserved rotate after each subsequent delimitation in the manner that Parliament determines by law.

Q: Can the House of the People be enlarged so that no state loses seats?

In design, yes; in law, only by amendment. Enlargement works by raising the total so that the population ratio can be applied to shares of a bigger House: states whose population share has fallen receive fewer seats than strict proportion of the old House would leave them, but no fewer than they hold in absolute number. The obstacle is Article 81, which caps the elected membership at five hundred and fifty against a present strength of five hundred and forty three, leaving almost no headroom. An enlargement of any consequence must amend that ceiling under Article 368, and the chamber built for the House, with seating for eight hundred and eighty eight members, indicates the scale of enlargement its designers contemplated.

Q: What part does the Election Commission play in delimitation?

The election machinery is built into the exercise at three points. The Chief Election Commissioner, or an Election Commissioner nominated by him, sits as an ex officio member of every Delimitation Commission, and the State Election Commissioner of the state concerned sits for that state’s work. When the orders are made, the Election Commission maintains them: the eleventh section of the Delimitation Act, 2002 empowers it to correct errors and to keep the orders up to date as district boundaries and names change, without altering any constituency. And the Election Commission conducts every election on the map the orders supply. In Assam in 2023 the Commission itself performed the delimitation, under the eighth section A of the Representation of the People Act, 1950.

Q: Does a delimitation order change the House that is already sitting?

No. A proviso to Article 82 states that a readjustment shall not affect the representation in the House of the People until the dissolution of the House existing when the readjustment takes place, and the tenth section of the Delimitation Act, 2002 applies the same rule to state assemblies. The new allocation and the new boundaries govern every election held after the orders are published and brought into effect, but the members already elected sit for the constituencies that returned them until their House or assembly is dissolved, and a by-election arising in the interval is held on the provisions that the new order superseded, as if they had not been superseded.