A reader who opens India’s environmental statutes looking for the rules that decide environmental cases will not find them there. The rules are in the case law, in environmental jurisprudence, the body of doctrine the courts constructed around the statutes. The Environment (Protection) Act, 1986 empowers the Central Government to take all measures it deems necessary for protecting the environment, and then leaves the content of those measures to notification. The Water Act and the Air Act create boards, consent procedures and offences, but neither statute states who bears the burden of proof when the science is uncertain, what a polluter must pay for beyond a fine, whether a hazardous enterprise can escape liability by pointing to a stranger’s act, or what the state may not do with a river or a forest. Those questions are the substance of environmental litigation, and every one of them was answered by a court. The body of answers, built case by case over four decades, is what environmental jurisprudence in India actually consists of, and it is the subject of this article.

The interpretive problem at the centre of the field can be stated plainly. Parliament legislated a framework and delegated its substance. The executive, which was to supply the substance through standards, consents and enforcement, chronically under-supplied it: boards were understaffed, prosecutions were rare, and the standards that existed were enforced unevenly against the industries they governed. Into that gap came the constitutional courts, equipped with two things the statutes did not give the regulators: a right, the right to life in Article 21, capacious enough to hold an environmental content once a bench chose to read it that way, and a procedure, the public interest petition, loose enough to let almost anyone invoke it. The doctrines that followed were not interpretations of statutory language in the ordinary sense. They were constructions placed on constitutional silence, and their authority rests on the law-declaring power of the Supreme Court under Article 141 rather than on any enacted text. That origin explains both their strength and their vulnerability, and it frames the two questions this article keeps separate throughout: what exactly did the courts hold, and was it theirs to hold.

The method matters because the field is routinely misstated in both directions. Preparation material compresses the doctrines into slogans, so that the precautionary principle is recited without the reversed burden of proof that distinguishes the Indian formulation, and absolute liability is attributed to the Bhopal litigation, which never decided it. Commentary at the other pole treats every environmental order as an exercise of raw judicial will, ignoring that the leading doctrines were laid down in reasoned judgments by identified benches on identified dates, and that later benches have narrowed, distinguished and occasionally regretted them in the open. This article works at proposition level. Each doctrine is stated in the form the deciding bench gave it, with the case, the year and the bench identified, the limits the bench itself acknowledged, and the later decisions that restated or confined it. Where a proposition comes from an observation rather than a holding, or from a committee the Court appointed rather than from the Court, the article says so, because in this field the difference between those things is the difference between law and commentary.

The constitutional hooks of environmental jurisprudence

The Constitution the courts inherited contained no environmental right. What it contained, after the Constitution (Forty-second Amendment) Act, 1976 took effect on 3 January 1977, was a directive principle and a fundamental duty. Article 48A obliges the state to endeavour to protect and improve the environment and to safeguard the forests and wildlife of the country. Article 51A(g) makes it the duty of every citizen to protect and improve the natural environment including forests, lakes, rivers and wild life, and to have compassion for living creatures. The same amendment moved forests and the protection of wild animals and birds from the State List to the Concurrent List, which is why Parliament could legislate across the field thereafter. None of these provisions is enforceable by a court on its own terms. Directive principles are expressly non-justiciable, and fundamental duties carry no remedy. A litigant in 1980 who wanted a court to act against pollution therefore had to find a right somewhere else, and the only candidate of sufficient width was Article 21, which provides that no person shall be deprived of life or personal liberty except according to procedure established by law.

Which constitutional provisions protect the environment without creating a right?

Article 48A, a directive principle obliging the state to protect and improve the environment and safeguard forests and wildlife, and Article 51A(g), a fundamental duty obliging every citizen to protect the natural environment and show compassion for living creatures. Both were inserted by the Forty-second Amendment and neither is directly enforceable in a court.

Alongside the constitutional hooks stood the statutes, and their structure is the second half of the explanation. The umbrella statute, the Environment (Protection) Act, 1986, is an enabling Act in the purest form: its operative provisions empower the Central Government to set standards, restrict the location of industries, issue directions including closure, and constitute authorities, while stating almost no substantive standard of its own. The Water (Prevention and Control of Pollution) Act, 1974 and the Air (Prevention and Control of Pollution) Act, 1981 are consent statutes: they regulate the establishment and operation of polluting units through boards, and their penal provisions were for decades modest and seldom used. The Forest (Conservation) Act, 1980 is a gatekeeping statute that forbids diversion of forest land for non-forest purposes without prior central approval, and famously does not define the word forest. A legal system whose environmental statutes delegate content, police process and omit definitions is a system that has, in effect, reserved the substantive questions for whoever decides disputes under them. The courts did not seize a finished body of law. They were handed its unfinished parts, and the doctrines are what they built in the spaces the statutes left.

The statutes’ own pedigrees sharpen the point. The Water Act was enacted under Article 252, on resolutions of state legislatures, because water was a state subject; the Air Act and the Environment (Protection) Act, 1986, Act 29 of 1986, were enacted under Article 253, the power to legislate for implementing international agreements, and their preambles invoke the Stockholm Conference of 1972. The foundational statutes of the field are thus, on their faces, implementations of an international commitment rather than expressions of a domestic legislative theory of the environment, and none of them attempts the theoretical work: no statement of who bears the risk of scientific uncertainty, no principle for pricing damage to a commons, no rule for the state’s own holdings of forest and river. When the benches of the 1990s went looking for those principles, they went to the same place Parliament had gone for the statutes, to international environmental law between Stockholm and Rio, and brought the principles home through the Constitution rather than through a bill. The doctrines and the statutes are, in that sense, siblings: both are transplants, one legislative and one judicial, and the quarrel between their partisans is a quarrel between two routes by which the same body of ideas entered Indian law.

The consent statutes deserve a closer look, because their design explains why the substantive law migrated to the courts. Under the Water Act and the Air Act, the operative legal act in an industrial unit’s life is the consent: permission to establish and permission to operate, granted by a state board on conditions about effluent and emission quality. The statutes thus speak the language of permission and condition, not of entitlement and burden. They do not say what happens when the science about a discharge is contested, because a consent system assumes the board’s conditions have already answered the scientific question. They do not price restoration, because their remedial imagination runs to prosecution and closure. And their enforcement depended on boards that were, by common account across the decades, technically thin, financially dependent on the governments whose industries they regulated, and reluctant prosecutors of the units on which local employment depended. A legal order of that shape generates disputes it cannot resolve in its own vocabulary. When the disputes reached courts that possessed a fundamental right and an open door, the courts answered in the vocabulary they had: rights, burdens, trusts and continuing supervision. The doctrines are unintelligible except as the product of that institutional encounter.

One statutory provision deserves notice at the outset because it reverses the usual direction of travel. When Parliament created the National Green Tribunal in 2010, it directed the tribunal, in Section 20 of that Act, to apply the principles of sustainable development, the precautionary principle and the polluter pays principle while passing any order, decision or award. Three doctrines that benches had developed in the 1990s were thereby given statutory form, the one place in the corpus where the judicial construction was taken up and enacted by the legislature. The provision is examined later in this article, at the point where the doctrines pass from pure case law into a statute. Its existence matters to the argument about legitimacy: whatever may be said about the doctrines’ birth, one Parliament has since instructed a tribunal to decide by them.

First, the door was opened: standing, letters and the municipal duty

Doctrine is downstream of access. A court cannot develop environmental law in cases it will not hear, and the traditional rule of standing, that only a person whose own rights are injured may move a court, would have kept most environmental harm outside the courtroom, because the victims of pollution are usually diffuse, poor, or not yet born. The first movement in the arc is therefore procedural. In S. P. Gupta v Union of India, decided at the end of 1981 and known as the Judges’ Transfer case, Justice Bhagwati’s opinion restated the law of standing for public interest litigation: where a legal wrong is done to a determinate class of persons who by reason of poverty, helplessness or disability cannot approach the court themselves, any member of the public acting bona fide may maintain an application for redress. The formulation converted standing from a property of the injured into a function of the injury’s inaccessibility, and every environmental petition of the following decades passed through the door it opened.

Who can move the Supreme Court for people who cannot move it themselves?

Any public spirited person or organisation acting bona fide may file a writ petition on behalf of a class of persons who, through poverty, helplessness, disability or social and economic disadvantage, cannot approach the court themselves. That is the standing rule restated in S. P. Gupta in 1981, and it is the procedural foundation of Indian environmental litigation.

The second procedural device was the letter. The courts of the late 1970s had begun treating letters and even press reports from or about prisoners as writ petitions, a practice called epistolary jurisdiction. Its environmental debut came in July 1983, when the Rural Litigation and Entitlement Kendra, a Dehradun organisation, wrote to the Supreme Court complaining of illegal limestone quarrying that was scarring the Mussoorie hills, causing landslides and destroying vegetation. The Court registered the letter as a writ petition under Article 32, appointed expert committees to inspect the valley, and on 12 March 1985 delivered the first of its major orders, describing the case, in terms, as the first of its kind in the country involving issues of environment and ecological balance. The litigation ran until 1988 and ended with most of the valley’s limestone mines closed as operating in violation of the Forest (Conservation) Act, 1980, with reafforestation directed. Three features of the Dehradun litigation became templates. The Court worked through committees of experts rather than through trial evidence. It balanced, expressly, the ecological harm against the industrial need for limestone, which is the earliest judicial working of what would later be named sustainable development. And it kept the case: the petition was not decided and disposed of in a single judgment but managed across years, an early instance of the supervisory style that would define the field.

The third foundational decision is older than the other two and is about duty rather than access. In Municipal Council, Ratlam v Vardhichan, decided in 1980 and reported at (1980) 4 SCC 162, residents of Ratlam had obtained an order from a magistrate under Section 133 of the Code of Criminal Procedure directing the municipality to abate a public nuisance: open drains, effluent from an alcohol plant and streets contaminated for want of sanitation works that Section 123 of the Madhya Pradesh Municipalities Act, 1961 obliged the council to provide. The municipality’s defence was that it had no money. Justice Krishna Iyer’s judgment for the Court dismissed the appeal and rejected the plea in principle: a statutory body constituted for the precise purpose of preserving public health cannot run away from its principal duty by pleading financial inability, and decency and dignity are a first charge on local self-governing bodies. Ratlam is the seed of much that followed. It treated a statutory duty owed to the public as enforceable at the instance of the public, it read a municipal provision together with the constitutional commitment to public health in Article 47, and it established the proposition, which regulators have faced ever since, that impecuniosity is not a defence to a statutory environmental obligation. The case was about drains rather than doctrines, but the doctrinal superstructure of the 1990s stands on ground Ratlam cleared: courts may direct public bodies to perform environmental duties, and the bodies must find the means.

Two features of the procedural settlement deserve emphasis because they shaped everything the doctrines later did. The first is that the jurisdiction was designed for the unrepresented. The epistolary practice began with prisoners who could not draft petitions, and its extension to environmental harm rested on a factual premise the benches repeated: the victims of a polluted river or a poisoned aquifer are typically communities without the money, organisation or information to litigate, while the harm itself is public in character and will go unremedied if no one may sue for it. Upendra Baxi, the jurist who did more than anyone to theorise the jurisdiction, named it social action litigation precisely to mark the difference from the adversarial private suit: the petitioner is a trigger, not a proprietor, and the court, not the parties, drives the inquiry through commissions and committees. The second feature is the width of the writ. Article 32 lies for the enforcement of fundamental rights, and Article 226, the High Courts’ corresponding power, lies for fundamental rights and for any other purpose, so the same doctrines could be, and were, developed in the High Courts as well as in the Supreme Court, subject to the discipline that the law declared by the Supreme Court under Article 141 binds every court. Environmental doctrine is therefore not a Delhi monopoly in its application, though its canonical statements are the Supreme Court’s, and a practitioner reads the High Court case law as application and extension, never as contradiction.

The right to life learns to breathe: Article 21 and the wholesome environment

Standing got the cases in; a right had to do the work once they were inside. The methodological precondition was laid in Maneka Gandhi v Union of India in 1978, where the Court refused to read Article 21 as a bare guarantee against executive action unsupported by law, and held instead that the procedure depriving a person of life or liberty must be right, just and fair, and that the article’s content would be filled by the values of the surrounding constitutional text. That method, expansion by interpretation, is what environmental counsel of the 1980s inherited. The same method, applied to the same article across the following decades, produced the rights to livelihood and education before it was codified, and in 2017 a nine-judge bench used it to recognise the right to privacy in the Puttaswamy judgment. The environmental reading of Article 21 is one branch of that larger interpretive project, and it should be assessed with the project, neither as an inexplicable judicial invention nor as a text the framers hid in the article.

The environmental content entered in stages, and precision about the stages matters because the textbooks compress them. In the oleum judgment of December 1986, examined in the next section, a Constitution Bench treated the right to life as engaged by industrial hazard and awarded compensation under Article 32 for its infringement. In Charan Lal Sahu v Union of India, decided in 1990, a Constitution Bench upholding the Bhopal Gas Leak Disaster (Processing of Claims) Act, 1985 addressed the link between environmental quality and the right to life in the course of sustaining Parliament’s assumption of the victims’ claims. The canonical short statement came on 9 January 1991 in Subhash Kumar v State of Bihar, reported at (1991) 1 SCC 598, where a bench of Justices K. N. Singh and N. D. Ojha held that the right to life guaranteed by Article 21 includes the right of enjoyment of pollution-free water and air for the full enjoyment of life, and that a citizen may move the Court under Article 32 to have pollution of water and air removed. That sentence, restated in hundreds of later orders, is the textual foundation of the entire jurisprudence, and it is a sentence no legislature wrote.

Subhash Kumar also contains, in miniature, the whole subsequent argument about the jurisdiction it was exercising. The petition alleged that industrial discharge had polluted the Bokaro river; on the facts the Court found the grievance entangled with a private business rivalry, dismissed the petition, and warned that public interest litigation moved for oblique motives, personal gain or publicity deserves dismissal and may attract costs. The same judgment that announced the right therefore also announced its discipline, a pairing later benches repeated so regularly that the two halves must be read as one doctrine: the door is wide, and the Court reserves the power to punish those who misuse it. Virender Gaur v State of Haryana, decided in 1994, added the proposition that environmental protection and preservation are part of the enjoyment of life and the right to live with dignity, applying the right against state action that degraded a community’s surroundings. By the middle of the 1990s the position was settled at the level of statement: a wholesome environment was an ingredient of the fundamental right to life, enforceable against the state under Articles 32 and 226, and available to be pleaded by persons other than its immediate victims. What remained was to build operative law on the statement, and that is what the three doctrinal judgments of 1996 and the liability judgment of 1986 supplied.

The right’s content in application is worth specifying, because a right to a wholesome environment could have remained a preamble. In practice the benches used it in three working ways. It supplied the ground for directing the state to perform duties it already owed under statute, the Ratlam pattern generalised: municipal sewage, solid waste, industrial effluent and vehicular emissions were all, at different times, made the subject of Article 21 directions against governments that had the statutory duty and had not performed it. It supplied the standard against which state inaction was measured: a government that licensed or tolerated pollution destructive of health was not merely inefficient but in breach of a fundamental right owed to the exposed population, which changed the litigation from review of administrative reasonableness into enforcement of an entitlement. And it supplied the remedial bridge to compensation, through the oleum holding that infringement of the right by a hazardous enterprise could be compensated in the writ proceeding itself. The right also proved capable of being pleaded for beneficiaries who could not appear: the intergenerational cases plead, in substance, on behalf of future persons whose environment is being consumed, a representation the standing rules permit and the sustainable development cases accept without treating it as a fiction. That last extension is easy to miss and hard to overstate, because it converts the right from a protection of the living litigant’s surroundings into a constraint on the present generation’s consumption of a stock, which is the premise the Goa fund and the extraction cap are built on.

Two qualifications keep the account honest. The first is that the Article 21 environmental right, as the benches framed it, runs against the state and its instrumentalities in the first instance; its application to private polluters is mediated through the state’s duty to prevent the pollution and through the liability doctrines, rather than through a direct horizontal fundamental right against the polluter. The second is that a right stated at this altitude decides nothing by itself. Every contested environmental case after 1991 turned not on whether a right to a clean environment exists, which was conceded, but on the doctrines that translate the right into burdens, standards and remedies: who must prove what, who pays for restoration, what the state may alienate, and how a court supervises compliance. Those doctrines are the real content of the jurisprudence, and they are taken in the order the courts produced them.

Absolute liability: the oleum answer to a Victorian rule

The liability doctrine came first in time and is in one respect the boldest of the four, because it replaced a received rule of the common law rather than filling a silence. Its occasion was not Bhopal. In the night of 4 December 1985, a year and a day after the methyl isocyanate leak at Bhopal, oleum gas escaped from the Shriram Foods and Fertilizer Industries plant in Delhi, with a further leak two days later; an advocate died and many were injured. The environmental advocate M. C. Mehta already had a petition under Article 32 before the Supreme Court seeking the closure or relocation of the plant, and the leak converted the petition into the occasion for a liability ruling. The doctrinal setting, and the reason the case could not be decided under the law as it stood, is set out fully in the account of the Bhopal disaster and the environmental legislation it produced: the Bhopal claims themselves had been taken over by statute and were moving toward settlement, so no Indian court would ever try Union Carbide’s liability, and the rule that would have governed such a trial was the rule the oleum bench was asked to apply.

That rule was the rule in Rylands v Fletcher, decided in England in 1868: a person who brings and keeps on land a dangerous thing is liable, without proof of negligence, for the damage its escape causes. Strict liability of that kind was subject to exceptions that had gathered around it over a century: an act of God, the act of a stranger over whom the occupier had no control, the plaintiff’s own default, consent, and statutory authority. Each exception was an invitation to years of litigation about fault by another name, and one of them, the act of a stranger, mapped precisely onto the defence being prepared in Bhopal, where the company’s account blamed a deliberate act of sabotage by an unidentified employee. A Constitution Bench of five judges, speaking through Chief Justice Bhagwati, delivered judgment on 20 December 1986 in M. C. Mehta v Union of India, reported at (1987) 1 SCC 395, and declined to apply the English rule. The bench reasoned that a doctrine devised for a pre-industrial economy could not govern the conditions of hazardous industry in India, and that the Court, exercising its constitutional role, should evolve a rule suited to those conditions rather than borrow one whose exceptions would defeat it.

Why did the oleum bench refuse to apply the English rule in Rylands v Fletcher?

Because the rule’s exceptions, act of God, the act of a stranger, the plaintiff’s default, consent and statutory authority, would have let a hazardous enterprise litigate its way out of liability, and one of them, the stranger’s act, was the defence under preparation in Bhopal. The bench held that Indian conditions required an exception-free rule.

The rule the bench laid down has three components, and each does distinct work. The first is the liability standard: an enterprise engaged in a hazardous or inherently dangerous activity owes an absolute and non-delegable duty to the community to ensure that no harm results from the activity, and if an accident occurs in its course, the enterprise bears absolute liability for the harm, with none of the Rylands exceptions available as a defence. The identity of the immediate wrongdoer, the intervention of a stranger and the permission of a statute are all equally irrelevant; the answer to an escape is the fact of the activity and the harm. The second component is the measure of damages: the bench held that compensation should be correlated to the magnitude and financial capacity of the enterprise, so that the larger and richer the operation, the greater the damages, a deterrent principle built into the quantum rather than left to criminal fines that a large enterprise can treat as a cost. The third component is jurisdictional, and for mass injury litigation it mattered almost as much as the other two: the Court held that compensation may be awarded in a proceeding under Article 32 itself for infringement of the right to life, so victims of a hazardous enterprise need not be remitted to the attrition of a civil suit to recover for a constitutional wrong.

The third component travelled furthest beyond its facts. In Nilabati Behera v State of Orissa, decided in 1993, the Court, awarding compensation for a custodial death, confirmed as a general principle that monetary compensation in public law for the infringement of Article 21 is an acknowledged remedy, distinct from and additional to the private law action in tort, and rested the confirmation in part on the line of authority of which the oleum judgment is the environmental head. The significance for the present subject is structural. Absolute liability is sometimes described as an environmental eccentricity, a doctrine invented for one industry case. In the Court’s own understanding it is an application, to hazardous enterprise, of a constitutional remedial theory that runs across the fundamental rights jurisprudence: where the state or a powerful private actor violates the right to life, the constitutional court may put a price on the violation itself, in the writ, without waiting for the private law to grind through its defences. The environmental cases gave that theory its most economically articulated form, in the capacity-scaled measure, but the theory is the Constitution’s, not the subject’s.

The doctrine’s limits are as instructive as its content, and a proposition-level account must state them. Absolute liability was never applied to Bhopal, the catastrophe that provoked it, because the Bhopal claims were closed by the settlement of 1989 rather than by adjudication; the doctrine’s first field of operation was the comparatively small Delhi leak in which it was announced, where the compensation ordered was modest. Legislatures later absorbed the principle only in part: the Public Liability Insurance Act, 1991 imposed no-fault immediate relief for accidents involving hazardous substances, funded by compulsory insurance, and the National Environment Tribunal Act, 1995 would have built a compensation forum on strict liability had it ever been brought into force, which it never was. The National Green Tribunal Act, 2010 provides for relief and compensation on a no-fault basis in accident cases within its scheme, which is the oleum principle in statutory dress but confined to the tribunal’s scheduled jurisdiction. And the doctrine answers the accident question only: it allocates the cost of escapes and explosions, not the chronic, permitted, cumulative pollution that constitutes most environmental harm, for which the operative principles are the two the Court adopted a decade later. A lawyer citing absolute liability outside the hazardous-accident setting is extending it beyond its holding, and the careful benches have treated it accordingly, as the head of a family of liability principles rather than as a general theory of environmental obligation.

The three liability regimes that Indian environmental law works with are worth distinguishing precisely, because argument in the field habitually confuses them. Fault liability, the ordinary tort position, requires the victim to prove negligence, and fails mass injury cases at the threshold of proof and cost. Strict liability in the Rylands form removes the need to prove negligence but admits the exceptions, so the forensic contest migrates to the exceptions, and a defendant with a plausible stranger, a plausible act of God or a statutory permission can litigate for a generation. Absolute liability removes the exceptions as well, and adds the capacity-scaled measure of damages, so the only questions are the character of the activity, the occurrence of the accident and the extent of the harm. The statutory no-fault schemes are a fourth thing again: liability without fault, but channelled through insurance or a tribunal and typically capped or scheduled, trading the doctrine’s open-ended deterrent damages for speed and certainty of payment. The oleum bench was choosing among the first three with the fourth not yet in existence, and its choice is best understood as a judgment about forensic reality: in a legal system where the Bhopal litigation had already consumed years without reaching liability, a rule whose exceptions invited a decade of contest was, for the victims of the next accident, equivalent to no rule at all.

The Ganga orders: the doctrines in working clothes

Between the oleum judgment and the doctrinal settlement of 1996, the Court was building the jurisprudence’s working habits in the Ganga pollution proceedings, and the habits matter because the set-piece doctrines were later administered through them. M. C. Mehta’s petition against pollution of the Ganga reached the tanneries of Jajmau, near Kanpur, which discharged untreated effluent into the river. By its order of 22 September 1987, reported at (1987) 4 SCC 463, the Court directed the tanneries that had failed to take the minimum steps toward primary treatment of their effluent to stop working, holding that a tannery which cannot set up a primary treatment plant cannot be permitted to exist, and that the financial capacity of the tanneries was irrelevant to the obligation. The bench stated the priority rule that the whole field has since repeated: the closure of tanneries might bring unemployment and loss of revenue, but life, health and ecology have greater importance to the people. A companion set of orders in January 1988 turned to the Kanpur municipality and its sewage, applying the Ratlam logic to the state’s own contribution to the river’s condition.

Three features of the Ganga proceedings became permanent characteristics of the jurisprudence. The first is the treatment of cost. Ratlam had held that a municipality cannot plead poverty against a statutory duty; the Ganga orders extended the same refusal to private industry, treating the expense of minimum treatment as a condition of the licence to operate rather than as a hardship to be weighed, a move that quietly converted environmental compliance from a variable in the balance into a threshold requirement for lawful operation. The second is the remedy’s granularity. The Court did not content itself with declaring the river’s right to be clean; it named individual tanneries in its orders, fixed the treatment technology at the level of the primary plant, set dates, and required the state board to certify. Doctrine at this resolution is administration, and the Ganga file is where the Court learned, and its critics learned to point at, the administrative style. The third feature is duration. The proceedings continued, through orders on municipal sewage and grossly polluting industries, for close to three decades. An order of December 1996 directed the relocation of tanneries and the imposition of pollution fines to be credited to an environment protection fund, an early working of the polluter pays idea in the same season that Vellore was stating it as doctrine. The file ended in the Supreme Court only when the Court transferred the Ganga matters to the National Green Tribunal, in stages in 2014 and 2017, recording that the pollution control boards had failed to perform their duties across the period. The transfer is one of the most instructive events in the field: the supervisory jurisdiction, having demonstrated both that sustained judicial pressure could force treatment plants into existence and that a court is an awkward permanent river authority, handed its longest file to the statutory tribunal Parliament had meanwhile created. Defenders of the jurisprudence cite the transfer as proof the system self-corrects toward institutions. Critics cite the same thirty years as the measure of what the substitution cost.

1996: polluter pays and the precautionary principle become law of the land

The doctrinal centre of the field is a single judgment of August 1996. The tanneries of Tamil Nadu, concentrated in districts including Vellore, had for years discharged untreated effluent into the Palar river and onto agricultural land, contaminating drinking water sources and rendering thousands of hectares difficult or impossible to cultivate. The Vellore Citizens Welfare Forum petitioned the Supreme Court under Article 32. A bench of three judges, Justices Kuldip Singh, S. Saghir Ahmad and Faizanuddin, delivered judgment in Vellore Citizens Welfare Forum v Union of India, reported at (1996) 5 SCC 647, in which Justice Kuldip Singh’s opinion undertook something no earlier environmental judgment had attempted: a systematic statement of the principles of Indian environmental law, gathered from international environmental law and constitutional text, and declared to be the law of the country.

The judgment’s method is as significant as its conclusions, because it is the route by which international principle entered domestic law. The bench surveyed the development of environmental concepts between the Stockholm Conference of 1972 and the Rio Conference of 1992, including the Brundtland Commission’s account of sustainable development, and then located the principles within the Indian constitutional structure: Articles 21, 47, 48A and 51A(g), read together, and the environmental statutes themselves, in which the bench found the concepts already implied. It added the international law route in terms: the principles are accepted as part of customary international law, and customary international law that does not conflict with domestic law is part of the law of the land. The holding sentence, in the fourteenth paragraph of the judgment as reported, is that the precautionary principle and the polluter pays principle are part of the environmental law of the country. That sentence is a holding, not an observation: it was the premise on which the bench disposed of the case, directing the constitution of an authority under Section 3(3) of the Environment (Protection) Act, 1986 to implement the two principles in the affected districts, assess the damage and recover the cost of remediation from the tanneries.

The precautionary principle, as the judgment formulates it, has three working parts, and examination answers that omit the third misstate Indian law. The principle holds, first, that environmental measures must anticipate, prevent and attack the causes of environmental degradation. It holds, second, that where there are threats of serious and irreversible damage, lack of scientific certainty shall not be used as a reason for postponing measures to prevent the degradation. It holds, third, and distinctively, that the onus of proof is on the actor or the developer to show that his action is environmentally benign. The third limb reverses the ordinary forensic position. A regulator or a community opposing an activity does not have to prove that the activity will cause harm; the proponent of the activity must demonstrate that it will not, and scientific uncertainty counts against the proponent rather than against the objector. The formulation is stronger than the versions in many jurisdictions, where precaution operates as a tie-breaker in policy rather than as a rule of proof in litigation, and it is the reversal that gives the Indian principle its practical bite in clearance disputes.

The elaboration of the burden came three years later in A. P. Pollution Control Board v Professor M. V. Nayudu, reported at (1999) 2 SCC 718, where the Court, addressing a hazardous industry seeking to locate within the catchment of drinking water reservoirs, examined the state of scientific uncertainty in environmental decision-making and treated the new burden of proof as a working rule requiring the applicant for an environmental permission to demonstrate the safety of its proposal. Nayudu is equally valuable for its candour about the institutional problem the burden creates: a rule that turns on the evaluation of contested science demands decision-makers capable of evaluating it, and the judgment surveyed the case for specialised environmental courts, a line of thought the Law Commission of India later took up in its Report No. 186 of 2003, which proposed the constitution of environment courts. The distinction between those two documents is one this article maintains throughout: Nayudu’s burden of proof is law laid down by a bench; the Law Commission’s court proposal is a recommendation addressed to Parliament, and the two carry entirely different authority however often they are cited in the same breath.

The industry’s side of Vellore should be recorded, because the judgment’s authority partly rests on its having been heard. The tanneries were not a marginal activity: leather was among the region’s principal employers and export earners, the units were numerous and small, and the cost of common effluent treatment bore on them unevenly. The bench’s answer to the economic objection was structural rather than dismissive. It treated the right to carry on the trade as subject to the environmental obligations the Constitution and the statutes already imposed, refused to let the age of the default mature into an entitlement, and then routed the consequences through the Section 3(3) authority, which could grade assessment and recovery unit by unit instead of closing an industry by decree. That combination, an uncompromising statement of principle with an administrative mechanism for its incidence, is the Vellore template, and it explains why the judgment could be at once the most theoretical in the canon and the foundation of a working compensation practice. It also marks the limit of what the template achieves: recovery through case-specific authorities is slow, contested and incomplete, and the Palar’s recovery was measured in decades. The gap between the principle’s clarity and the remediation’s pace is not an argument against the principle. It is the recurring condition of the whole jurisprudence, in which the law is stated completely in a judgment and then implemented partially by institutions the judgment does not control.

The polluter pays principle, as Vellore states it, also has a defined content that paraphrase tends to shrink. The bench held that the absolute liability for harm to the environment extends not only to compensating the victims of pollution but also to the cost of restoring the environmental degradation, and that remediation of the damaged environment is part of the process of sustainable development, so the polluter is liable to pay the cost to individual sufferers as well as the cost of reversing the damaged ecology. Two consequences follow. The principle is backward-looking as well as compensatory: it prices the repair of the environment itself, not merely the losses of identifiable plaintiffs, which is what makes it usable for contaminated land and aquifers where the victims are diffuse. And it is not a fine: money exacted as a penalty for an offence goes where the penal statute directs, while money recovered on the polluter pays principle is measured by the cost of restoration and applied to it. The principle had in fact been applied earlier in 1996, in Indian Council for Enviro-Legal Action v Union of India, the Bichhri case, where the Court directed that the cost of remediating soil and groundwater poisoned by chemical plants in a Rajasthan village be recovered from the industries responsible, working through the machinery of the Environment (Protection) Act. Vellore supplied the theory; Bichhri had already supplied a working instance, and the two decisions of that year together fixed the principle in Indian law.

The machinery Vellore set in motion is part of its meaning. The bench did not merely declare the principles and remit the parties to the boards whose failure had produced the petition. It directed the Central Government to constitute an authority under Section 3(3) of the Environment (Protection) Act, 1986 to implement the precautionary and polluter pays principles in the affected region: to assess the loss the tanneries had caused, to determine the compensation payable to the sufferers and the cost of restoration, and to recover those sums from the industries, with the tanneries that would not pay facing closure. The pattern, a doctrine announced and an ad hoc statutory authority created in the same breath to execute it, recurs throughout the jurisprudence and explains the field’s unusual institutional archaeology, in which bodies born of judgments, the loss of ecology authorities, the capital’s pollution authority, the forest committee, stand beside the boards Parliament designed. The pattern also contains the jurisprudence’s recurring weakness in embryo. A principle enforced by an authority created for one case, in one region, against one industry, delivers remediation there; it does not by itself build the general capacity whose absence caused the case, and the history of the decades after Vellore is in large part the history of that gap between the decided case and the general system.

The public trust: the state as trustee, not owner

The fourth doctrine arrived four months after Vellore, in a judgment about a motel, a river and a former minister. Span Motels Private Limited, a company in which the family of Kamal Nath, a former environment minister, held an interest, had obtained a lease of forest land on the bank of the river Beas in Himachal Pradesh and had used earth-moving machinery to divert the river’s course in order to protect the motel from floods. In M. C. Mehta v Kamal Nath, decided on 13 December 1996 and reported at (1997) 1 SCC 388, a bench of Justices Kuldip Singh and S. Saghir Ahmad adopted the public trust doctrine into Indian law. The doctrine, traced by the bench through Roman law and English common law to the American decision in Illinois Central Railroad Company v Illinois, holds that certain resources, air, sea, waters and forests among them, are of such importance to the public that the state holds them in trust for public use and cannot commit them to private ownership or convert them to private purposes. The bench held that the doctrine is a part of the law of the land, quashed the lease, treated the state government’s grant as a breach of the public trust, and directed restoration of the area, with the motel to bear the cost of restitution on the polluter pays principle. Later orders in the same litigation, in 2000 and 2002, worked out the monetary consequences, including exemplary damages for the interference with the river.

What orders did the Court pass against the motel and the state in the Kamal Nath case?

The Court quashed the lease of forest land on the Beas bank, held the state government’s grant a breach of public trust, directed the state to take over the land and restore it to its natural condition, and ordered the motel to pay restitution costs, with exemplary damages of ten lakh rupees fixed later.

The doctrine’s precise juridical shape is narrower than its rhetoric, and the brief for this article states the limit correctly: public trust is a constraint on alienation, not a general environmental right. It does not, by itself, entitle a citizen to demand any particular level of environmental quality; that work is done by Article 21. What it does is disable the state from disposing of the trust resources as though they were ordinary government property, and it makes a disposal that substantially impairs public use of the resource vulnerable to being quashed however regular the paperwork. Later benches used it in the allocation of natural resources, and the doctrine received its most important qualification in the Presidential Reference on natural resource allocation, In re Natural Resources Allocation, decided in 2012 and reported at (2012) 10 SCC 1, where a Constitution Bench held that the public trust doctrine does not compel any single method of distribution, such as auction, for every natural resource; the method is a matter of policy, reviewable for arbitrariness rather than dictated by the trust. A reader who understands public trust as a rule against the conversion of common resources, policed through the ordinary standards of administrative law, has the doctrine as the courts apply it. A reader who treats it as a freestanding power to annul any unpopular allocation has the slogan rather than the holding.

The doctrine’s routine work is quieter than the Kamal Nath facts suggest. Its characteristic modern application is defensive: a lake bed built upon, a wetland reclaimed, a stretch of riverbank or seashore enclosed, a common grazing or forest tract allotted for a use that excludes the public, challenged on the ground that the state held the resource for the public and could not give it away as it gave away ordinary land. In that posture the doctrine functions as a rule about the state’s title: some assets are held under a disability, and transactions that ignore the disability are voidable however impeccable the file work. Its limits appear at the same point. The trust does not tell the state how to manage the resource well, only that it may not abdicate or alienate it; it does not fix the content of the public’s use; and it does not reach the far commoner case in which the state retains title and merely permits the resource to be degraded, which must be fought under Article 21 and the pollution doctrines instead. Kamal Nath itself illustrates the boundary precisely: the trust holding quashed the lease, while the restoration money came from polluter pays and the exemplary damages from the Court’s constitutional remedial power, three distinct instruments doing three distinct jobs in one litigation.

Four doctrines, four origins, four limits

The table below is the reference object for the field. Each doctrine is given with the decision that brought it into Indian law, the formulation the bench actually used, the source the bench drew it from, the obligation it creates and for whom, and the principal criticism or limit that later practice has exposed.

Doctrine	Case and year it entered Indian law	Precise formulation	Source drawn from	What it requires of whom	Principal criticism or limit
Absolute liability	M. C. Mehta v Union of India, oleum judgment of 20 December 1986, reported at (1987) 1 SCC 395	An enterprise engaged in a hazardous or inherently dangerous activity owes an absolute and non-delegable duty; if an accident causes harm, it is liable without any of the exceptions to the English strict liability rule, and compensation is correlated to the enterprise’s magnitude and capacity	The Court’s own construction under Articles 21 and 32, evolved expressly in place of Rylands v Fletcher	Hazardous enterprises bear accident harm without defences of act of God, stranger’s act or statutory authority; victims may be compensated in writ proceedings	Born of Bhopal yet never applied to it; confined in practice to hazardous accidents and partly absorbed into no-fault statutory schemes
Polluter pays	Vellore Citizens Welfare Forum v Union of India, 1996, (1996) 5 SCC 647; applied in the Bichhri case the same year	The polluter’s liability extends beyond compensating victims to the cost of restoring the environmental degradation itself; remediation is part of sustainable development	International environmental law, including the Rio Declaration, received as customary international law and located in Articles 21, 47, 48A and 51A(g)	The polluter pays sufferers and pays for reversing the damaged ecology; regulators may recover restoration costs from the polluter	Restoration cost is hard to quantify and harder to collect from closed or insolvent units, so orphan sites fall back on the public
Precautionary principle	Vellore Citizens Welfare Forum v Union of India, 1996, (1996) 5 SCC 647, elaborated in A. P. Pollution Control Board v Nayudu, 1999	Measures must anticipate and prevent environmental harm; scientific uncertainty is no reason to postpone them; the onus of proof is on the developer or actor to show the action is environmentally benign	International environmental law between Stockholm 1972 and Rio 1992, received as customary international law	The project proponent, not the objector, carries the burden of demonstrating safety where harm is threatened and science is uncertain	A reversed burden is only as good as the forum applying it; it demands scientific evaluation capacity that regulators and courts must borrow from committees
Public trust	M. C. Mehta v Kamal Nath, judgment of 13 December 1996, reported at (1997) 1 SCC 388	The state holds resources such as air, water, the sea and forests in trust for the public and cannot convert them to private ownership or impair their public use	Roman law and the common law, through the American decision in Illinois Central Railroad Company v Illinois	The state, as trustee, is disabled from alienating trust resources for private purposes; grants in breach of trust may be quashed and restoration ordered	It constrains alienation rather than guaranteeing environmental quality, and the 2012 allocation Reference held it does not dictate any single method such as auction

Sustainable development: the balance that decides cases both ways

Sustainable development is the most used and least determinate member of the family. Vellore adopted it from the Brundtland Commission’s report as the organising concept within which the precautionary and polluter pays principles operate, and later benches supplied its components: intergenerational equity, the obligation to use and conserve natural resources, environmental protection as an integral part of the development process rather than an afterthought. Its judicial function, though, is not that of a rule. It is a direction to balance, an instruction that development and environment are both values the decision-maker must hold together, and for that reason it has decided cases in opposite directions with equal facility. In the Dehradun litigation of the 1980s the balance justified closing most of a valley’s limestone mines while allowing the national need for limestone to be weighed in the outcome. In later forest and mining cases the same concept justified restraint, conditions and funds. In the Narmada case, examined below, it justified allowing a dam to rise.

The Narmada Bachao Andolan litigation is the necessary test of the whole jurisprudence, because it is the case where the doctrines were fully pleaded and the development claim won. The movement challenged the Sardar Sarovar dam on environmental and rehabilitation grounds, in a petition filed in 1994 after the project’s environmental clearance had been granted in 1987 without completed studies. On 18 October 2000, a bench of Chief Justice A. S. Anand and Justices B. N. Kirpal and S. P. Bharucha delivered judgment in Narmada Bachao Andolan v Union of India, reported at (2000) 10 SCC 664. Justice Kirpal’s opinion for the majority, himself and the Chief Justice, dismissed the petition: the majority held that the decision to build the dam was a policy decision in which the Court would not substitute its judgment, found the petitioner guilty of laches in coming years after clearance, treated rehabilitation under the tribunal award as the governing obligation to be enforced pari passu with construction, and warned, in a passage every later PIL judgment quotes, that the public interest jurisdiction has been ballooning and must not be inflated until it bursts, or degenerate into publicity interest litigation. Justice Bharucha dissented: on his reading the environmental clearance had been granted without the studies the law required, the foundational facts about impact had never been gathered, and construction should not proceed until they were. The majority did not reject the environmental doctrines; it accepted the framework and held that the framework, applied to a project of this character at this stage, did not yield a stop order. The dissent applied substantially the same framework and reached the opposite result. That is the indeterminacy criticism in its strongest concrete form: a balancing concept capacious enough to house both outcomes constrains the decision-maker less than a rule does, and transfers the real decision to the bench’s assessment of facts and institutional competence. The honest statement of sustainable development in Indian law is therefore double. It is the concept through which environmental values enter decisions that would otherwise be taken on engineering and economics alone, and it is a concept whose content in any given case is supplied by the court’s view of the record rather than by the concept itself.

The intergenerational limb received its most concrete application in the mining cases. In Goa Foundation v Union of India, decided on 21 April 2014 and reported at (2014) 6 SCC 590, the Court dealt with iron ore mining in Goa that had proceeded for years on leases whose renewals were found illegal, and, applying intergenerational equity as a working principle rather than a recital, imposed an interim cap on annual extraction pending expert determination and directed the creation of the Goan Iron Ore Permanent Fund, into which ten per cent of the sale proceeds of the ore would be paid for sustainable development and intergenerational equity. The reasoning treats the mineral stock as capital belonging across generations: the present generation may take the income of the resource but must convert part of the capital into a fund that outlasts the ore. Whatever view is taken of courts fixing extraction caps, the Goa judgment shows the balancing concept hardening, in a line of cases, into instruments: caps, funds, expert committees with dated reports. The pattern is characteristic of the whole jurisprudence, in which a principle announced at a high level of generality acquires operational content only through the supervisory machinery described in the next section.

The forest proceedings supply the parallel instance on the restraint side. When forest land is diverted for a mine, a dam or a highway, the loss is not only of trees but of the ecological services the tract performed, and the compensatory afforestation the clearance system exacts, planting elsewhere, does not replace those services at the place and time of the loss. In the Godavarman proceedings, on the recommendations of the Central Empowered Committee, the Court built the doctrine of net present value into the clearance system: the project proponent pays, in addition to afforestation costs, a sum representing the quantified value of the ecosystem services the diverted forest would have provided, collected into the compensatory afforestation funds and applied to forest regeneration. The episode is sustainable development and polluter pays fused into a price. A generation earlier the diversion decision was a permission; the jurisprudence converted it into a permission at a computed ecological price, fixed not by a legislature’s schedule but by orders in a continuing mandamus on a committee’s advice. Whether that is the doctrine’s triumph or its overreach depends, once again, on the institutional view the reader takes of the whole enterprise.

Continuing mandamus: the remedy that would not close

The doctrines state the law; the characteristic remedy of Indian environmental law is what made the law effective, and it is procedural. A writ of mandamus ordinarily directs a public authority to perform a duty and is then spent. In the environmental cases the courts developed the practice of keeping the petition alive after the first directions, requiring periodic reports and affidavits, issuing further directions as compliance faltered, and disposing of the matter only when the supervised programme was complete, if then. The practice received its name in a case about investigation rather than environment: in Vineet Narain v Union of India, judgment of 18 December 1997, reported at (1998) 1 SCC 226, the Court described the procedure it had adopted for monitoring the hawala investigations as, in short, a continuing mandamus. Environmental litigation took the device further than its inventors took it in that case, because environmental compliance is measured in years of construction, planting, monitoring and enforcement rather than in the filing of a charge sheet, and because the respondents are governments whose promises the courts had learned to discount.

One structural consequence of the supervisory style deserves separate statement, because it redistributed power within the federation. Environmental administration in India is, in its daily operation, state administration: state boards issue consents, state forest departments manage the estate, municipalities run the drains and sewers. The doctrines, by contrast, are national and uniform, declared by one court for the whole territory, and the continuing mandamus applied them against states in their most sensitive domains, land, forests, minerals and municipal finance, without the mediation of Parliament or of the intergovernmental machinery. The Godavarman orders bound every state to a definition of forest that several states resisted and to clearance and fund regimes their legislatures had not enacted; the vehicular and noise directions overrode the enforcement priorities of the governments they bound; the mining orders fixed, for particular states, what could be extracted and on what fiscal terms. Nothing in this was unconstitutional: the doctrines enforce fundamental rights and central statutes, and the states are as bound by both as the Union. But the federal texture of environmental governance changed under the jurisprudence’s pressure, from a field of state administration under central framework legislation into a field in which the operative standards were set, in the last resort, in a courtroom in Delhi, and state governments appeared as respondents accounting for their performance. The 2023 forest amendment, in which Parliament reasserted a legislative definition against the judicial one, and the states’ recurring applications within the Godavarman file for the relaxation of particular directions, are both unintelligible except as moves within that redistributed structure.

The exemplary instance is the forest litigation. T. N. Godavarman Thirumulpad, a landowner from the Nilgiris, filed a writ petition in 1995, Writ Petition (Civil) No. 202 of 1995, complaining of felling on land his family had once held. On 12 December 1996, a bench of Justices J. S. Verma and B. N. Kirpal delivered the order, reported at (1997) 2 SCC 267, that converted the petition into the supervisory forum for Indian forest governance: the word forest in the Forest (Conservation) Act, 1980 was held to bear its dictionary meaning, the Act was held to reach every tract answering that description whatever its ownership or classification, and any area recorded as forest in government records was held to be forest land for the Act. The proceeding then simply continued. Across the following decades, applications within the same writ petition brought before the Court the working of the compensatory afforestation regime, the charging of net present value for diverted forest land, the licensing of sawmills, mining in forest areas, the boundaries of protected areas and the width of eco-sensitive zones around them, with orders accumulating into the thousands. The vehicular pollution proceedings against Delhi’s air, conducted in the M. C. Mehta petitions, used the same technique to administrative effect: by an order of 28 July 1998 the Court, acting on the report of the authority described below, directed the conversion of Delhi’s bus fleet to compressed natural gas on a dated schedule, together with the phasing out of old commercial vehicles and the elimination of leaded petrol, and then supervised the conversion across its missed deadlines. The river cleaning proceedings concerning the Ganga, begun in the same generation of petitions, ran for decades on reports and directions. Continuing mandamus is the connective tissue of the field: it is how doctrines announced in set-piece judgments were converted into felling bans, fuel conversions, fund collections and closure orders, and it is also, as the critique section records, the practice about which the institutional objection bites hardest.

The mechanics of the supervision are a study in themselves, because they amount to a parallel procedure that no rule of court prescribes. A monitored matter proceeds by compliance affidavits, in which the respondent government states, on oath and at intervals the bench fixes, what it has done against each direction; by reports of the committees and authorities the Court has appointed, which supply the bench with facts it has no machinery to gather; and by the office of the amicus curiae, the counsel appointed to assist the Court rather than to represent a party, who in the great environmental files became something close to a standing public counsel for the proceedings, marshalling applications, testing affidavits and proposing the next directions across changes of bench. The senior advocate Harish Salve served for years as amicus in the forest proceedings, and the pattern of an amicus continuity outlasting the individual judges who hear the file is one of the jurisdiction’s unremarked institutional inventions: the memory of a thirty-year case resides in its counsel and its committees more than in any single bench. Each element answers a genuine incapacity of the ordinary process, and each carries the cost the critique identifies. Affidavits are the executive grading its own work. Committees decide in a forum whose procedure the parties do not control. An amicus of long standing accumulates an influence no election or appointment process conferred. The supervision is, at once, the only way the orders could have been made effective and a standing departure from the forms that make adjudication legitimate, and any verdict on continuing mandamus that omits either half of that sentence is incomplete.

A court that supervises for decades needs eyes, and the environmental courts built themselves an apparatus. In the Godavarman proceedings, by an order dated 9 May 2002, the Supreme Court constituted the Central Empowered Committee as an interim body to monitor the implementation of its orders and place cases of non-compliance before it; by a notification dated 17 September 2002, the committee was constituted as a statutory authority under Section 3(3) of the Environment (Protection) Act, 1986, with power to call for documents, summon persons and receive evidence, and with state chief secretaries and forest heads co-opted for state matters. For two decades the committee functioned as the Court’s standing investigator in forest matters: project proponents, state governments and objectors all made their cases to it, and its recommendations framed the orders the bench passed. By a notification dated 5 September 2023 the committee was reconstituted as a permanent body for monitoring and ensuring compliance with the Court’s orders across environment, forest and wildlife matters, and in a judgment dated 31 January 2024 the Supreme Court approved the reconstitution and put the committee’s institutional position on a regular footing. The parallel body for the capital’s air was the Environment Pollution (Prevention and Control) Authority for the National Capital Region, constituted by notification S.O. 93(E) dated 29 January 1998 under the same Section 3(3), chaired by Bhure Lal, whose reports supplied the factual basis for the vehicular pollution directions; it served until the ordinance of October 2020 dissolved it and created the statutory Commission for Air Quality Management in National Capital Region and Adjoining Areas, which Parliament enacted as Act 29 of 2021. The sequence in both instances is the same, and it is the institutional signature of the jurisprudence: a body invented by a court order or at a court’s instance, housed in a statutory provision designed for other purposes, and in time converted by the legislature into a permanent part of the state. Whether that sequence represents healthy institutional improvisation or the judiciary staffing the executive by instalments is precisely the question the critique presses.

The doctrines at work: noise, mining and the price of illegality

The set-piece doctrines were applied in lines of cases that tested their edges, and three of those lines repay attention because they show the principles doing different kinds of work. The noise cases translated the Article 21 right into the regulation of everyday life and of religious practice. In Church of God (Full Gospel) in India v K. K. R. Majestic Colony Welfare Association, decided in 2000 and reported at (2000) 7 SCC 282, the Court held that no religion prescribes that prayers must be performed through voice amplifiers or beating drums, and that the noise rules bind religious institutions as they bind others, the right to practise religion under Articles 25 and 26 being subject to the rights of others to rest and to health. In In Re Noise Pollution, decided in 2005 and reported at (2005) 5 SCC 733, the Court issued comprehensive directions on loudspeakers, firecrackers and vehicular noise, resting the right to a noise-free environment in Article 21 and treating the Noise Pollution (Regulation and Control) Rules, 2000 as the operative code its directions enforced. The doctrinal point is modest but the reach is not: a right developed for industrial disasters was held to govern the decibel level of a neighbourhood festival, which is either the right working as rights should, or the clearest instance of the jurisdiction’s expansion into ordinary administration, depending on the view taken of the whole enterprise. The firecracker litigation shows the same reach in its regulatory form. In Arjun Gopal v Union of India, in orders culminating in October 2018, the Court restricted the manufacture and sale of firecrackers across the country to formulations of reduced emission, regulated their online sale and fixed the hours within which they could be burst on festivals, reasoning from the Article 21 rights of the population, children and the elderly in particular, against the commercial and celebratory claims on the other side, and quoting Vellore’s precautionary reasoning in support. Whatever view is taken of a court prescribing the chemistry of a festival, the case is the noise line’s logical terminus: a jurisprudence that began with a magistrate’s order about drains in Ratlam ended by regulating, product by product, the composition of what a country may burn for celebration, on the authority of the same right.

Does a religious practice exempt anyone from the noise pollution rules?

No. In the Church of God case of 2000, the Supreme Court held that no religion prescribes prayer through amplifiers or drums, and that places of worship must comply with the noise rules like any other source; the freedom of religion is subject to the right of others to sleep, rest and health under Article 21.

The mining cases tested the doctrines against the state’s own complicity, because the illegality was usually the lessees’ but the failure was the regulators’. Samatha v State of Andhra Pradesh, decided in 1997, read the Fifth Schedule’s protections to prohibit the transfer of tribal land, including by mining lease to private companies, in scheduled areas, an early demonstration that the Court would apply protective constitutional provisions directly against extractive projects. The Goa Foundation judgment of 2014, discussed above, converted intergenerational equity into a cap and a fund. In Common Cause v Union of India, decided in 2017, the Court dealt with iron ore and manganese mining in Odisha that had proceeded without environmental clearances and beyond lease limits, and directed recovery from the lessees of the full value of the ore illegally raised, applying the polluter pays logic beyond restoration cost to the disgorgement of the entire proceeds of illegality. Read together, the mining line shows the principles escalating with the character of the default: conditions and funds for legal mining badly supervised, full-value recovery where the mining was simply unlawful. The proportionality is judicially administered, case by case, which is again either the system’s suppleness or its lack of a rule, and the article returns to that fork in the critique.

Sand mining, the least glamorous branch of the extractive economy, produced the line’s most consequential extension of the clearance doctrine. In Deepak Kumar v State of Haryana, decided in 2012, the Court addressed leases for minor minerals, sand, gravel and ordinary earth, granted for areas small enough to fall outside the impact assessment notification’s clearance requirement, and held that the environmental consequences of extraction do not shrink with the lease: leases of minor minerals, including those under five hectares and including renewals, require environmental clearance, and the Court directed the framing of rules and the reconstitution of the appraisal process accordingly. The reasoning is the precautionary principle applied to a regulatory threshold: a size limit drawn for administrative convenience cannot license cumulative harm that the notification exists to appraise, and the aggregate of small extractions across a river system is itself the environmental fact. The Aravalli proceedings within the Godavarman file, in which mining across stretches of the hill range in Haryana and Rajasthan was prohibited and the prohibitions revisited over years, show the same logic at landscape scale, and the friction it generates: each prohibition protects a watershed and a forest corridor, and each displaces an industry and a workforce whose case reaches the Court as applications inside a file that was opened, originally, about something else.

Species, climate and the extension of the framework

The framework’s later development ran along two tracks, the standing of non-human life and the arrival of climate change as a constitutional subject, and both tracks show the method of the earlier decades being extended and, in one instance, checked. In Centre for Environment Law, World Wide Fund for Nature-India v Union of India, decided in 2013 and reported at (2013) 8 SCC 234, the Court directed the reintroduction of the Asiatic lion from Gujarat to a second home at Kuno in Madhya Pradesh, reasoning expressly in ecocentric terms: the question was to be approached from the species’ best interest, not from human utility, and the Court treated the ethic of conservation as internal to the statutory scheme of the Wild Life (Protection) Act, 1972 read with Articles 21, 48A and 51A(g). The judgment is explicit about the philosophical move it is making. The earlier jurisprudence, for all its strength, was anthropocentric in structure: the environment figured as the condition of human life, health and livelihood, and its protection was justified by the human interests it served. The lion judgment contrasts that approach with an ecocentric one, in which the species and the ecosystem hold the centre and human beings appear as one species among others, under a duty of stewardship rather than in a position of dominion. A reader should register both the novelty and the limit. The ecocentric reasoning was deployed to construe a conservation statute and to resolve a dispute between two states and the Union about where a species should live; it was not held to create a general jurisprudence of animal rights, and the Nagaraja judgment’s wider statements about the inherent rights of species were, as the 2023 Constitution Bench demonstrated, revisable when a legislature settled the underlying practice differently. The wildlife line thus exhibits, in compressed form, the whole pattern of the field: a bench extends the framework by a principled step, the step governs for a period, and its permanence is decided later, by larger benches and by legislatures, rather than by the step itself. In Animal Welfare Board of India v A. Nagaraja, decided in 2014 and reported at (2014) 7 SCC 547, the Court held that bulls could not be used in the jallikattu events then permitted in Tamil Nadu, and reasoned that the rights of animals to live with dignity fall within the protective ambit of Article 21’s expansion, every species having an inherent right to live and to be protected by law. The checking instance followed in 2023, when a Constitution Bench upheld the state amendments that permitted the traditional bull events under regulated conditions, treating the legislative settlement of a cultural practice as entitled to prevail over the earlier bench’s reading. The sequence is the durability question in a single line of cases: a doctrine built by a two-judge bench stood for nine years and was then, in substance, displaced by legislation whose validity a larger bench sustained. Nothing in that sequence is irregular. It is how judge-made law and statute interact. But it demonstrates, concretely, that the environmental doctrines occupy the constitutional space Parliament leaves them, and that the space can be renegotiated.

The climate track is younger and its propositions must be stated with care, because the leading judgment mixes holding and observation in proportions that commentary has not always respected. In M. K. Ranjitsinh v Union of India, decided on 21 March 2024, a bench of Chief Justice D. Y. Chandrachud and Justices J. B. Pardiwala and Manoj Misra heard a matter concerning the habitat of the great Indian bustard in Rajasthan and Gujarat, where overhead power transmission lines were killing the birds, and where the Court had earlier directed undergrounding across a vast area. The bench modified the blanket undergrounding direction in favour of an expert committee’s assessment, and, in the course of the judgment, articulated a right against the adverse effects of climate change, sourced in Articles 14 and 21 and supported by Articles 48A and 51A(g), reasoning that the right to life and the right to equality cannot be fully realised in a destabilised climate, that the burdens of climate change fall unequally on communities least able to bear them, and that the absence of umbrella climate legislation does not negate the right. The operative orders concerned power lines and a bird; the climate right was articulated as the framework within which such questions will be decided, and its concrete content, what it forbids, what it requires governments to do and on what timetable, awaits the cases that will plead it. The careful statement is therefore this: since March 2024, Indian constitutional law contains a recognised right against the adverse effects of climate change whose doctrinal existence is settled and whose operative reach is not, and the difference between those two propositions is exactly the difference this article has maintained between holdings and the observations that surround them.

The clearance cases: the doctrines meet the impact assessment

The doctrines’ most consequential modern theatre is not the disaster or the forest but the environmental clearance, the prior permission under the impact assessment notification issued under the Environment (Protection) Act that a listed project must obtain before it begins. The clearance process is where the precautionary principle stops being a proposition and becomes a burden allocated between the project proponent, who must produce the impact study, and the objector, who says the study is worthless; and the case law of the clearance is best read as the courts deciding, repeatedly, how much judicial scrutiny that allocation will bear. In Lafarge Umiam Mining Private Limited v Union of India, decided on 6 July 2011 and reported at (2011) 7 SCC 338, the Court upheld the clearances for a limestone mine in the East Khasi Hills of Meghalaya after a history of contested disclosures about whether the site was forest, treated the forest rights compliance process, including the involvement of the local community through its institutions, as integral to a lawful diversion, and used the occasion to direct the Central Government to appoint a national regulator under Section 3(3) of the Environment (Protection) Act for appraising projects and enforcing clearance conditions. The direction was not complied with, and later orders in the forest proceedings record the Court chasing its own direction without result. The episode belongs in any honest account of the jurisprudence’s power: a bench can announce a doctrine that binds every court in the country, and cannot, by the same instrument, make a ministry create an office.

In Hanuman Laxman Aroskar v Union of India, decided in 2019, the Court considered a challenge to the clearance for an airport project in Goa and sustained the scrutiny the National Green Tribunal had applied to the appraisal, treating sustainable development as the frame within which the adequacy of an environmental clearance is judged and insisting that the impact assessment is a substantive legal instrument, not a formality. The doctrinal significance is that the balancing concept, criticised for indeterminacy, here performed a disciplining function against the executive rather than for it: the appraisal had to grapple with the material questions because the governing principle required the environmental cost to be confronted on the record.

The clearance line’s sharpest holding concerns timing. In Alembic Pharmaceuticals Limited v Rohit Prajapati, decided on 1 April 2020 and reported at (2020) 17 SCC 157, a bench of Justices D. Y. Chandrachud and Ajay Rastogi held that the concept of an ex post facto environmental clearance is in derogation of the fundamental principles of environmental jurisprudence: a clearance granted after a project has begun, regularising the violation, defeats the precautionary structure of prior appraisal, in which screening, scoping, public consultation and appraisal are designed to precede the harm. The executive nevertheless maintained a regularisation regime, through a notification of 2017 and an office memorandum of 2021 that allowed violators to seek clearance after the event on payment of penalties. In Vanashakti v Union of India, a judgment of May 2025 struck down both instruments as contrary to law; that judgment was recalled in November 2025, and the final judgment, delivered in July 2026, upheld the 2017 notification while quashing the 2021 office memorandum. The oscillation is the clearest available demonstration of this article’s central distinction. Alembic’s proposition, that prior clearance is of the essence and retrospective clearance a contradiction, is a holding of a bench that has not been overruled. The fate of the regularisation instruments turned, in the end, on the particular instruments and the undertakings behind them, and was revised within the Court itself across fourteen months. A reader who collapses the two levels, treating every headline in the sequence as the state of the law, will misstate the law at every stage of it.

The clearance cases also complete the answer to a question the set-piece doctrines leave open: against whom, in the end, does the reversed burden operate? In Vellore it operated against an industry already polluting. In the clearance line it operates prospectively against the state itself, because the appraisal is the state’s process and its inadequacy is the state’s failure; the proponent’s study is evidence within a decision the government must justify. That is why the clearance litigation, for all its technicality about notifications and committees, is continuous with Ratlam: in each, the court’s real order is addressed to a public authority that held a duty in advance, and the private party’s fate follows from whether the authority performed it.

What the doctrines are not: holdings, observations and committee paper

A proposition-level discipline protects the field from its own literature, and it is worth stating the taxonomy expressly. A holding is the proposition of law necessary to the decision, laid down by the bench that decided the case, and it binds under Article 141 as the law declared by the Supreme Court. Vellore’s fourteenth paragraph, the oleum bench’s liability rule and the Kamal Nath bench’s adoption of public trust are holdings. An observation is a proposition stated in the course of reasoning that the decision did not require: the sustainable development recitals that decorate judgments whose outcomes turn on narrower grounds, judicial exhortations to legislate, and much of the rhetoric of judicial solicitude for the environment are observations, persuasive in proportion to the bench and the reasoning, but not the ratio of anything. A committee recommendation is neither: the Central Empowered Committee’s reports, the expert committees in the Dehradun and Goa matters, and the reports of bodies such as the High Level Committee chaired by T. S. R. Subramanian, which reported on 18 November 2014 and recommended a wholesale consolidation of the environmental statutes, are inputs into decisions, carrying the authority of the expertise behind them and no legal force until a court or a legislature acts on them.

The taxonomy is completed by the discipline of bench strength, which determines how a doctrine may lawfully change. A bench is bound by the decisions of benches of equal or greater strength; a two-judge bench that doubts a proposition laid down by three judges does not overrule it but refers the question to a larger bench, and the law stands until the larger bench speaks. Environmental doctrine has lived under that discipline throughout. The Vellore principles, laid down by three judges, have been applied by benches of every size without a larger bench being asked to disown them, which is a large part of their stability. The jallikattu position fell not because a bench overruled Nagaraja informally but through the orthodox channels: legislation changed the underlying legal position, and a Constitution Bench of five judges then sustained the legislation against the earlier reading. The Vanashakti sequence, a judgment striking down the regularisation instruments, a recall of that judgment, and a final judgment reaching a divided outcome on the two instruments, proceeded by review and recall within the Court’s own procedures. The mechanisms are slow and occasionally untidy, but they are the constitutionally regular ones, and their existence answers the crudest version of the activism charge: a court whose doctrines can be displaced only through larger benches, legislation and constitutional amendment is a court operating inside the system’s rules for changing law, however energetically it uses the space those rules allow. The examination industry and the news report alike flatten these categories, attributing committee proposals to the Court and observations to the law. The flattening has a cost beyond inaccuracy: it overstates what a litigant can demand by right, and it understates the genuinely remarkable thing, which is how much of the operative law survives the strict test and remains holding.

A complication peculiar to this field must be added to the taxonomy, because it governs how the forest law in particular is to be read. The Godavarman dictionary-meaning ruling of 12 December 1996, on which the entire modern law of forest diversion rests, was an interim order in a writ petition that remained pending for decades, not a final judgment disposing of a lis after full argument on a closed record. The same is true of hundreds of the operative directions in the environmental canon: fuel conversion deadlines, sawmill licensing regimes, mining bans in specified regions, the net present value charges. Indian practice treats such directions, when they declare law or settle a governing principle, as binding with the authority of the Court’s law-declaring power, and governments order their affairs by them because disobedience is contempt. But their jurisprudential status is genuinely different from a reasoned final judgment. They are frequently short, sometimes unreasoned on the point that matters most, framed for the parties and the region before the bench, and liable to modification in the same file by a later bench that hears a fuller record, as the eco-sensitive zone directions of 2022 and 2023 show. The careful reader therefore asks of every celebrated environmental proposition three questions in sequence: which bench stated it, in what kind of order, and has a later bench in the same proceedings restated, confined or withdrawn it. The doctrines that head this article survive those questions. A surprising amount of what is quoted as environmental law does not, and the discipline of asking is the difference between the jurisprudence and its mythology.

Against that taxonomy, the statutory adoption of 2010 takes its proper place. When Parliament enacted the National Green Tribunal Act, 2010, Section 20 directed the tribunal to apply sustainable development, the precautionary principle and the polluter pays principle in every order, decision and award. Doctrines that had existed only as law declared under Article 141 were converted, for the tribunal’s wide scheduled jurisdiction, into a statutory instruction, breach of which is an error of law correctable on appeal to the Supreme Court. The conversion is partial: absolute liability and public trust were not enacted, the tribunal’s schedule of statutes has its own gaps, and the constitutional courts retain their writ jurisdiction untouched. But the direction of travel matters for the legitimacy debate. A legislature that believed the doctrines to be usurpations could have abolished them for the tribunal’s field; it instead commanded their use, and later legislatures, amending the forest statute in 2023 among others, have worked around the doctrines at specific points rather than repealing the jurisprudence wholesale. The doctrines’ authority in the tribunal’s field is therefore no longer judicial at all. It is Parliament’s.

The practical consequences for anyone applying this law follow from its structure. A project proponent’s environmental impact assessment is, in substance, the discharge of the Vellore burden before the event: the document through which the proponent demonstrates that the action is environmentally benign, assembled in advance because the precautionary principle will treat its absence or inadequacy as a reason to stop the project rather than as a gap the objector must fill. An objector’s case is correspondingly framed as an attack on the demonstration, on baseline data, on alternatives not considered, on conditions that cannot be enforced, and is pleaded to the tribunal under a statute that commands the tribunal to decide through the three named principles. A regulator defending a consent or a clearance must show a record on which the burden was discharged, which is why appraisal minutes and reasons have become the real battleground of the field. And a government disposing of a natural resource must construct the transaction to survive the trust: to show that the resource was not the state’s to give away without regard to the public’s interest in it, and that the method chosen, whatever it is, was chosen for reasons that a reviewing court can respect after the 2012 Reference. None of this appears in the text of the Water Act or the Environment (Protection) Act. All of it is the law in action, and all of it is traceable to identified judgments whose propositions a pleader must state exactly, because the opposing side’s first move is always to show that the proposition cited is broader than the bench that supposedly laid it down.

The tribunal’s practice under Section 20 shows the doctrines in their most routinised form, and routinisation is itself a stage in a doctrine’s life that the set-piece judgments do not display. Before the National Green Tribunal, polluter pays is not an occasion for a lecture on Rio; it is the working basis on which benches compute environmental compensation for a polluting cluster, a breached consent condition or an illegal extraction, assessed on the scale and duration of the violation and the damage attributable to it, and directed toward restoration. The precautionary principle appears as the ground on which a clearance granted on inadequate appraisal is set aside or a hazardous operation is restrained pending study. Sustainable development appears as the instruction the statute itself gives the bench about how to reason. Whatever is lost in the passage from doctrine to formula, and something is lost, since a formula can be applied by a bench that has not absorbed the reasoning, something is also gained, and the gain is the point of the 2010 settlement: the principles became the ordinary law of a standing institution, applied weekly, appealable to the Supreme Court on law, and no longer dependent on the accident of a public interest petitioner reaching a constitutional bench. The jurisprudence’s defenders treat that routinisation as its vindication. Its critics treat the same routinisation as proof of how far the enterprise travelled from adjudication, since a doctrine that began as a constitutional holding ended as an administrative tariff. The description is common ground; only the valuation differs.

The institutional objection, at full strength

The critique of this jurisprudence must be given in its strongest form, which is institutional rather than ideological, and its proponents are named because the argument belongs to them. The jurist S. P. Sathe, in his work on judicial activism, argued that a court which assumes continuing supervision over administration crosses from adjudication into governance without the mandate, the machinery or the accountability that governance requires, and that each such assumption, however justified by the default it answers, corrodes the separation of powers on which the court’s own authority ultimately rests. The legal scholar Anuj Bhuwania, studying the public interest jurisdiction’s later career, pressed the procedural limb of the objection: the informality that made the jurisdiction accessible, no pleadings discipline, no strict standing, orders on reports and letters, also made it arbitrary in operation, and the constituency that paid for the informality was frequently the poor, in matters such as slum clearance and informal livelihoods where court-driven administration proceeded without the hearings a trial would have guaranteed. Upendra Baxi, who named the jurisdiction social action litigation and defended its founding generation, himself warned against its degeneration into a vehicle for any cause with a letterhead. Applied to the environmental field, the objection assembles itself. When a bench fixes emission standards and fuel conversion deadlines for a capital city, prescribes the width of eco-sensitive zones for every protected area in the country in a single order, as a Godavarman bench did in June 2022 before a later order of April 2023 differentiated the position, caps the iron ore output of a state and designs its permanent fund, or keeps a forest petition open for three decades issuing orders that the affected parties, miners, villagers, state governments, project workers, frequently had no structured opportunity to contest, the court is performing the functions of a ministry and a legislature with the personnel of a courtroom. It has no inspectorate of its own; it borrows the executive’s officers and the committees it appoints, which are accountable to the bench that chose them and to no electorate. It cannot be appealed in any ordinary sense, because an open file has no final order to appeal from. And every year in which the court performs these functions is a year in which the legislature and the executive are relieved of the pressure to build institutions of their own, so that environmental governance is, on the critique’s account, weaker in the long run for having been judicially substituted: the boards remain starved because the Court will always constitute a committee, and the ministry remains unaccountable because the bench will always take the blame.

The Court’s own record supplies the critique with two of its most uncomfortable exhibits, and candour requires them to be set out. In its judgment of 31 January 2024 on the Central Empowered Committee, the Supreme Court recorded that the committee had functioned as an ad hoc body for almost two decades, that some of its members were above seventy-five years of age and some resided outside India, and that the institutional position required to be regularised, which it then was, by the permanent notification of September 2023 that the judgment approved. A body exercising, in practical effect, a screening jurisdiction over the forest proposals of a continent-sized country had been left constitutionally informal for twenty years by the institution that created it. The second exhibit is the national regulator. In Lafarge in 2011 the Court directed the Central Government to appoint a regulator for project appraisal and enforcement under Section 3(3) of the umbrella Act, a direction the executive simply did not implement, and the Court’s later orders record the non-compliance without curing it. For the critique, the two exhibits together state the whole case: the judiciary can neither staff its own creations with regularity nor compel the executive to staff the judiciary’s designs, so the institutional output of the jurisprudence is a patchwork of the permanent, the ad hoc and the ignored. For the defence, the same exhibits cut the other way: an executive that will not appoint even a regulator a court has designed for it is the best evidence that the defaults which produced the doctrines were not a judicial pretext.

The defence, stated at the same strength, begins by refusing the critique’s counterfactual. The doctrines were not developed against functioning regulators whose work the courts interrupted. They were developed across a record of statutory machinery that the political branches had enacted and then declined to operate: consent boards that did not prosecute, a compensation tribunal enacted in 1995 and never brought into force at all, standards unissued and duties unenforced until a petition arrived. Chief Justice Bhagwati’s benches reasoned from irreversibility: ecological harm that is not stopped when it is threatened is frequently not compensable when it matures, and a court presented with a fundamental right, an irreversible harm and a defaulting administration is not made restrained by inaction; it merely chooses the outcome in which the harm proceeds, with the same responsibility for the choice. The doctrines themselves, the defence continues, are disciplined in ways the critique understates. The reversed burden of proof operates in litigation, between parties, on evidence. Absolute liability was confined to hazardous accidents and promptly absorbed, in moderated no-fault form, into statutes Parliament chose to pass. Public trust constrains the state’s disposal of resources through ordinary administrative law standards, and a Constitution Bench trimmed its imperial version in the 2012 allocation Reference. Sustainable development, for all its indeterminacy, produced in Narmada the most deferential major judgment in the canon, delivered by the very court the critique accuses of supremacy. And the appellate structure did, in the end, correct the supervisory excesses through the Court’s own later benches, as the eco-sensitive zone modification of 2023 and the reconstitution of the Central Empowered Committee on a permanent statutory footing the same year attest. On the defence’s account, the jurisprudence is best read as the constitutional system working under conditions of institutional failure, with the court as the branch that could act because it alone could be set in motion by a letter.

Two further points complete the defence and should not be lost in the institutional accounting. The first concerns expertise. The critique’s premise, that courts lack the technical competence for environmental administration, is answered in practice by the committee architecture: benches decide on material assembled by the Central Empowered Committee, by expert bodies under the umbrella Act and by the regulator’s own scientists, and the tribunal Parliament created in 2010 institutionalised the answer by staffing benches with expert members beside judicial ones. The honest form of the objection is therefore not that the system decides without expertise, but that the expertise is marshalled inside a judicial process whose forms fit it imperfectly, which is a criticism of design rather than of competence, and one the 2023 and 2024 regularisations of the committee system partly met. The second point concerns the doctrines’ reception by the legal systems watching them. The Vellore formulations, the reversed burden and restoration-inclusive polluter pays in particular, have been treated in the comparative literature and in the reasoning of courts and tribunals outside India as considered statements of principles that many jurisdictions hold in weaker form, and the Indian jurisprudence is standard reading in the environmental law of the Commonwealth world. Reception proves nothing about legitimacy at home, and the defence does not need it to. It is recorded because it complicates the picture of the doctrines as local judicial excess: the propositions India is accused of inventing are, in their Indian form, among the country’s principal exports to the world’s environmental law.

This article does not adjudicate between those accounts, because the disagreement is genuinely institutional: it turns on a judgement about how democracies should allocate the cost of regulatory failure, and the evidence supports the premises of both sides. What can be stated as settled is narrower and is worth stating exactly. The doctrines are law, declared under Article 141, and three of them are additionally statutory commands within the tribunal’s field. They are not entrenched: they may be narrowed by larger benches, and they may be displaced by legislation that survives constitutional review, as the forest amendment of 2023 and the jallikattu amendments of the states illustrate from opposite directions. Their durability is therefore not a property they possess but a condition that is continually renegotiated among the branches, and the honest answer to the recurring question, whether court-created environmental law will last, is that its lasting is being decided, case by case and statute by statute, in the open. A summary of case law cannot substitute for the reports themselves in a live matter, and nothing in this article is advice on one; the doctrines operate through the text of the judgments that state them, and pleading from a paraphrase is how propositions get misstated.

Verdict: stronger than the statutes, and held on the same tenure

The namable claim of this article can be returned to with the record behind it. The doctrines are stronger than the statutes. The statutes delegate their content to the executive and contain almost no substantive standard; the doctrines impose a reversed burden of proof on developers, absolute liability on hazardous industry and a trust obligation on the state, none of which any legislature enacted, and the most demanding environmental obligations in Indian law accordingly rest on judgments rather than on enactments. That is a fact about where the law’s content sits, and the forty-year record assembled here supports it without strain. It is equally a fact that the doctrines share the tenure of all judge-made law: they bind because the Supreme Court declared them, they have been trimmed by the Supreme Court itself, and Parliament has shown, in the tribunal statute by adoption and in the forest and wildlife amendments by displacement, that it can take the field back whenever it assembles the will. The series has argued throughout that the meaning of a statute lies as much in the record around it as in its text. This cluster is the limiting case, where the record is not administrative practice but a body of judicial doctrine operating beside the statutes, often more strictly than they do, and the statutes cannot be understood at all without it. Readers who keep a working file on a live environmental matter, journalists protecting sources among them, will find it useful to keep case notes, doctrine maps and correspondence together in an encrypted workspace designed for exactly that discipline. The doctrines reward that discipline, because in this field the judgment is the statute, and the reader who cannot state precisely what a bench held does not yet know the law.

That is also the answer this article gives to the student who asks why the field is examined as a list of cases rather than as a code. It is a list of cases because the law is one: four doctrines with dates and benches attached, a remedial practice with a name and an inventor case, a statutory adoption in 2010 that confirmed three of the doctrines and omitted the rest, and an argument about institutional legitimacy that the cases themselves keep conducting, in the open, through dissents, modifications and recalls. The statutes supply the occasions. The jurisprudence supplies the law. A series about legislation ends its environmental cluster with that inversion deliberately, because no account of Indian environmental legislation that confines itself to the enacted text will explain a single outcome in the field it purports to describe.

Frequently Asked Questions

Q: How did Indian courts make the environment a fundamental right?

By interpretation of Article 21, in stages. The method was set in Maneka Gandhi in 1978, which read the right to life expansively. In the oleum judgment of 1986 a Constitution Bench treated a wholesome environment as engaged by the right and awarded compensation under Article 32. A Constitution Bench in Charan Lal Sahu in 1990 addressed the link between environmental quality and the right to life, and on 9 January 1991, in Subhash Kumar v State of Bihar, the Court stated the proposition in terms: the right to life includes the right of enjoyment of pollution-free water and air for the full enjoyment of life, enforceable by a petition under Article 32. Articles 48A and 51A(g), inserted by the Forty-second Amendment, supplied supporting text without themselves creating rights.

Q: What is the polluter pays principle in Indian law?

It is the principle, declared part of the environmental law of the country in Vellore Citizens Welfare Forum v Union of India in 1996, that a person or enterprise responsible for pollution bears its full cost. The Indian formulation extends beyond compensating identified victims: the polluter is liable for the cost of restoring the environmental degradation itself, remediation of the damaged ecology being treated as part of sustainable development. The principle had already been applied that year in the Bichhri case to recover remediation costs from chemical industries, and in Common Cause in 2017 it supported recovery of the entire value of ore mined illegally. Money recovered on the principle is measured by the cost of restoration or the value disgorged, and is distinct from a fine imposed for an offence, though Parliaments and tribunals also use it as the basis for environmental compensation.

Q: What is the precautionary principle and how is it applied?

It is the principle, adopted in Vellore in 1996, that environmental harm must be anticipated and prevented rather than awaited and repaired. Its Indian formulation has three parts. Measures must anticipate, prevent and attack the causes of degradation. Where threats of serious or irreversible damage exist, lack of scientific certainty is no reason to postpone preventive measures. Distinctively, the onus of proof lies on the developer or actor to show that the proposed action is environmentally benign. Scientific uncertainty therefore counts against the project proponent and not against the objector or the regulator. In A. P. Pollution Control Board v Nayudu in 1999 the Court worked the reversed burden as a practical rule for permissions involving hazardous activity, requiring the applicant to demonstrate the safety of its proposal to the satisfaction of the deciding authority.

Q: What is the public trust doctrine?

It is the doctrine, adopted in M. C. Mehta v Kamal Nath by judgment of 13 December 1996, that the state holds certain resources, including air, water, the sea and forests, as trustee for the public, and cannot convert them to private ownership or use them in ways that destroy their public character. The doctrine descends from Roman law and the common law through the American decision in Illinois Central Railroad Company v Illinois. In Kamal Nath the Court quashed a lease of forest land on the Beas bank granted to a motel company and held the grant a breach of trust. The doctrine constrains the state’s power to alienate common resources; it is not itself a general environmental right, and the Constitution Bench in the 2012 natural resources allocation Reference held that it does not dictate any single method, such as auction, for distributing resources.

Q: What is continuing mandamus in environmental cases?

It is the remedial practice by which a court, instead of deciding a petition and closing it, keeps the matter pending and supervises compliance with its directions over months or years, calling for reports and affidavits and issuing further orders as implementation proceeds. The phrase received its canonical statement in Vineet Narain in 1997, where the Court described its monitoring of the hawala investigations as a procedure of continuing mandamus. Environmental litigation made it the field’s characteristic remedy: the Godavarman forest proceedings, opened in 1995, the Delhi vehicular pollution proceedings, in which the conversion of the bus fleet to compressed natural gas was supervised across its deadlines, and the Ganga cleaning proceedings all ran in this form. Its strength is that executive promises are tested against dated performance. Its weakness, pressed by critics, is that a file open for decades produces orders that cannot be appealed and parties who may never be fully heard.

Q: What does sustainable development mean in Indian judicial usage?

It is the balancing concept, taken from the Brundtland Commission’s report and adopted in Vellore in 1996, under which development and environmental protection are treated as interdependent values to be held together rather than as alternatives. Indian benches have given it components, including intergenerational equity, conservation of natural resources and the integration of environmental protection into the development process, and Parliament wrote it into Section 20 of the National Green Tribunal Act, 2010 as one of the principles the tribunal must apply. In practice the concept does not decide cases by itself. In the Narmada judgment it supported allowing a dam to proceed under enforced rehabilitation conditions; in forest and mining cases it has supported closure, caps and funds. Its critics therefore call it indeterminate: the balance is struck by the deciding bench on the record, not by the concept, which is why precise statements of what a court ordered matter more than recitals of the phrase.

Q: Have courts gone too far in environmental governance?

Serious opinion divides, and both cases are institutional. The critique, made by jurists such as S. P. Sathe and developed by scholars such as Anuj Bhuwania, is that benches which set fuel deadlines, fix eco-sensitive zone widths, cap a state’s mining output and supervise a forest petition for three decades perform executive and legislative functions without electoral accountability, technical machinery or appeal, relieve the political branches of building regulators, and proceed by orders in files where affected parties are not systematically heard. The defence is that the interventions answered documented defaults: unenforced statutes, starved boards and a compensation tribunal enacted in 1995 and never brought into force, against harms that are irreversible once suffered. It adds that the doctrines have been trimmed by later benches and that Parliament, in the National Green Tribunal Act and the forest amendment, has adopted some doctrines and displaced others, which is the constitutionally ordinary way for judge-made law to be settled.

Q: What role does the Central Empowered Committee play in forest cases?

The committee is the Supreme Court’s standing investigative and advisory body in the Godavarman forest proceedings. The Court constituted it by an order of 9 May 2002 as an interim body, and a notification of 17 September 2002 constituted it as a statutory authority under Section 3(3) of the Environment (Protection) Act, 1986. It monitors implementation of the Court’s orders, inquires into applications by project proponents, states and objectors, may call for documents, summon persons and receive evidence, and places its recommendations before the bench, whose orders in forest matters are characteristically framed on them. Cases of non-compliance with the Court’s directions are reported through it. A notification of 5 September 2023 reconstituted it as a permanent body for monitoring compliance with the Court’s environment, forest and wildlife orders, and the Supreme Court approved the reconstitution by judgment of 31 January 2024.

Q: What is epistolary jurisdiction and how did courts come to accept letters as writ petitions?

Epistolary jurisdiction is the practice by which the constitutional courts treat a letter, and sometimes a press report, addressed to the court or to a judge as a writ petition, dispensing with the formalities of drafting, court fees and counsel. It grew out of the prisoners’ rights cases of the late 1970s, in which letters from undertrial prisoners were taken up as habeas corpus petitions, and it was underwritten by the standing rule restated in S. P. Gupta in 1981, under which a public spirited person may sue for those who cannot sue themselves. Its environmental landmark is the Dehradun quarrying litigation: in July 1983 the Rural Litigation and Entitlement Kendra wrote to the Supreme Court about limestone mining in the Mussoorie hills, the letter was registered as a writ petition under Article 32, and the resulting proceedings ran until 1988 and closed most of the valley’s mines.

Q: Can the Supreme Court award compensation in a writ petition under Article 32?

Yes. That proposition was laid down as part of the oleum judgment in M. C. Mehta v Union of India in December 1986, where the Constitution Bench held that the Court may award compensation in an Article 32 proceeding for infringement of the right to life under Article 21, rather than remitting the victims of a hazardous enterprise to a separate civil suit. The holding matters most in mass injury situations, where the alternative is years of individual litigation over liability and quantum. The power is discretionary and remedial: it is exercised where the infringement is established and the facts permit assessment, and later benches have used it for compensation in pollution matters and have also framed compensation on the polluter pays principle. It does not convert the writ court into a trial court for contested damages, and parties are still sent to the ordinary forums where liability itself is genuinely in dispute.

Q: What is the difference between a holding and an observation in a Supreme Court judgment?

A holding, or ratio, is the proposition of law necessary to the decision on the facts before the bench; under Article 141 the law declared by the Supreme Court binds all courts in India, so the holding is law. An observation, or obiter dictum, is a proposition stated in the course of reasoning that the decision did not require: it persuades by the quality of its reasoning and the strength of the bench, but it does not settle the point. The distinction decides real disputes in environmental law. Vellore’s statement that the precautionary principle and the polluter pays principle are part of the environmental law of the country is a holding, being the premise of its directions. Much of the sustainable development language in judgments decided on narrower grounds is observation. Committee reports a bench appoints, including Central Empowered Committee recommendations, are neither: they are evidence and advice until the Court adopts them in an order.

Q: Where did intergenerational equity enter Indian environmental law?

The concept, that the present generation holds natural resources subject to the claims of future generations, arrived with the Brundtland Commission’s account of sustainable development and was absorbed into the Indian principles collected in Vellore in 1996. For years it functioned mainly as a recital. Its hardest application came in Goa Foundation v Union of India, decided on 21 April 2014, concerning iron ore mining in Goa conducted for years under leases whose renewals were held illegal. The Court treated the ore body as capital held across generations, imposed an interim cap on annual extraction pending expert determination, and directed the creation of the Goan Iron Ore Permanent Fund, into which ten per cent of the sale proceeds of the ore must be paid for sustainable development and intergenerational equity. The judgment converts the equity idea into instruments, a cap and a fund, rather than leaving it as a preamble to balancing.

Q: How do Indian courts apply international environmental law that Parliament has not enacted?

Through the customary international law route stated in Vellore. The bench held that the precautionary principle and the polluter pays principle are accepted as part of customary international law, and that customary international law which does not conflict with domestic law is part of the law of the land, so the principles could be applied without awaiting legislation. The bench reinforced the route by locating the principles within the constitutional text, in Articles 21, 47, 48A and 51A(g), and by finding them implied in the environmental statutes. The technique is monist in effect but conditional in form: an international norm enters only where it is genuinely customary, where Parliament has not legislated inconsistently, and where it can be anchored in constitutional or statutory language. A treaty obligation that is neither customary nor incorporated stands on different footing and does not by itself create enforceable domestic rights.

Q: Are the environmental doctrines part of the basic structure of the Constitution?

No bench has held that they are. The basic structure doctrine, from Kesavananda Bharati, limits the amending power of Parliament under Article 368; the environmental doctrines are law declared by the Supreme Court under Article 141, and most of the obligations they impose operate at the level of ordinary law, below the amending power altogether. Their practical protection is different in kind. The Article 21 right to a wholesome environment, on which the doctrines rest, is a fundamental right, and legislation that abrogates a fundamental right is open to challenge under Part III; a legislature narrowing a doctrine must therefore respect the right beneath it. But the doctrines’ specific content, the reversed burden, the trust constraint, the liability rule, may be restated by larger benches and may be modified or displaced by constitutionally valid legislation, as the state amendments on traditional bull sports, upheld by a Constitution Bench in 2023, displaced the earlier judicial position in that field.

Q: What did the Supreme Court hold in the Ratlam municipality case?

In Municipal Council, Ratlam v Vardhichan, decided in 1980, residents had obtained a magistrate’s order under Section 133 of the Code of Criminal Procedure requiring the municipality to abate a public nuisance of open drains and effluent, works that Section 123 of the Madhya Pradesh Municipalities Act, 1961 obliged it to perform. The council pleaded that it had no funds. Justice Krishna Iyer’s judgment dismissed the appeal and rejected the plea in principle: a statutory body constituted for the purpose of preserving public health cannot escape its duty by pleading financial inability, and decency and dignity are a first charge on local self-governing bodies. The holding makes a public authority’s statutory environmental duty enforceable at the instance of affected residents, with impecuniosity unavailable as a defence, and it is the foundation stone of the later jurisprudence because it established that courts may direct public bodies to perform, and to find the means of performing, environmental obligations the political process had left undone.

Q: How did the Taj Trapezium judgment deal with the industries around the Taj Mahal?

The Taj Trapezium case, M. C. Mehta v Union of India, decided on 30 December 1996 and reported at (1997) 2 SCC 353, concerned coke and coal burning industries in the trapezium-shaped zone around Agra whose emissions were damaging the Taj Mahal and the health of residents. A bench of Justices Kuldip Singh and Faizan Uddin applied the precautionary principle as Vellore had stated it, placing the onus on an industry to show that its operation was environmentally benign, and found the emissions proved to be the main source of the damage. The Court directed the 292 industries it identified to change over to natural gas as industrial fuel on a fixed schedule; industries unable to obtain gas connections were to stop functioning on coke and coal within the zone and could relocate outside it with state assistance in obtaining alternative plots, so that the monument’s protection was not purchased wholly at the workers’ expense.

Q: What limits has the Supreme Court itself placed on environmental public interest litigation?

Three kinds recur. The first is standing discipline within a wide door: from Subhash Kumar in 1991 onward, benches have held that petitions moved for oblique motives, personal gain, business rivalry or publicity deserve dismissal and may attract exemplary costs, and the bona fides of the petitioner are examinable. The second is institutional deference on policy: the majority in Narmada in 2000 held that the decision to build a project is for the executive, that delay in approaching the Court may defeat the petition as laches, and warned that the jurisdiction, which has been ballooning, must not be inflated until it bursts or degenerate into publicity interest litigation; later guidelines on public interest petitions, including those in the Balwant Singh Chauffal case of 2010, systematised the screening of petitions. The third is self-correction within supervision: later benches have modified earlier supervisory orders, as when the uniform eco-sensitive zone direction of 2022 was differentiated in 2023, and have regularised bodies the jurisdiction created.

Q: What did the Supreme Court decide in the Narmada Bachao Andolan case?

By judgment of 18 October 2000, reported at (2000) 10 SCC 664, a bench of Chief Justice A. S. Anand and Justices B. N. Kirpal and S. P. Bharucha dismissed the challenge to the Sardar Sarovar dam by a majority of two to one. Justice Kirpal’s majority opinion held that the decision to construct the dam was a policy decision the Court would not second-guess, that the petition, filed in 1994 against a clearance granted in 1987, was weakened by laches, and that construction could proceed, with the rehabilitation obligations under the Narmada Water Disputes Tribunal award to be enforced step by step with the raising of the dam. Justice Bharucha dissented, holding that the environmental clearance had been granted without the impact studies the process required and that construction should halt until the foundational studies were done. The majority accepted the environmental doctrines and the Article 21 framework; its holding is about the limits of judicial review of development policy, not about the existence of environmental rights.

Q: What is the right against the adverse effects of climate change recognised in 2024?

It is the right articulated by a bench of Chief Justice D. Y. Chandrachud and Justices J. B. Pardiwala and Manoj Misra in M. K. Ranjitsinh v Union of India, decided on 21 March 2024. The underlying matter concerned overhead power lines killing great Indian bustards in Rajasthan and Gujarat, and the bench modified an earlier blanket direction for undergrounding lines in favour of expert committee assessment. In its reasoning the Court held that Articles 14 and 21, supported by Articles 48A and 51A(g), ground a right to be free from the adverse effects of climate change: the right to life cannot be realised in a destabilised climate, and climate burdens fall unequally on communities least equipped to bear them, which engages the equality guarantee. The Court noted that India has no umbrella climate legislation and held that the absence does not negate the right. The right’s existence is settled by the judgment; the specific duties it imposes await later cases.

Q: What was the Environment Pollution (Prevention and Control) Authority, and why was it replaced?

The Authority, known as the EPCA, was constituted for the National Capital Region by notification S.O. 93(E) dated 29 January 1998 under Section 3(3) of the Environment (Protection) Act, 1986, in the course of the Supreme Court’s vehicular pollution proceedings, and was chaired by Bhure Lal. It investigated Delhi’s air pollution, reported to the Court, and its action plans supplied the factual basis for the directions converting the capital’s bus fleet to compressed natural gas and phasing out the oldest vehicles. It was a creature of the Court’s supervision: an ad hoc statutory authority reporting to a bench rather than a permanent regulator with its own comprehensive mandate. The ordinance of October 2020 dissolved it and created the Commission for Air Quality Management in National Capital Region and Adjoining Areas as a permanent statutory body with consolidated powers across the region’s governments, a design Parliament enacted in the Commission for Air Quality Management Act, 2021.