On April 23, 2025, one day after gunmen killed 26 tourists in the meadows of Pahalgam, the Indian government did something no prime minister had done in sixty-five years of nuclear rivalry, cross-border wars, and terrorist provocations. New Delhi suspended the Indus Waters Treaty, the 1960 water-sharing agreement that had survived three full-scale wars, the Kargil conflict, the 2001 Parliament attack standoff, the 2008 Mumbai massacre, and every diplomatic breakdown between the two nations since Partition. Within eleven days, the sluice gates of the Baglihar Dam on the Chenab River were shut. Engineers at the Kishanganga project on the Neelum were preparing similar measures. For the first time since the treaty’s signing, India was not merely threatening to use water as leverage. It was doing it, visibly, physically, and with the explicit framing of punitive action against a state that had sheltered the men who planned the Pahalgam massacre.

No aspect of this decision can be overstated. India controls the upper reaches of every major tributary that flows into Pakistan. The Chenab, the Jhelum, and ultimately the Indus itself pass through Indian-administered territory before crossing into Pakistani Punjab and Sindh, the agricultural heartland that feeds 230 million people. The Baglihar Dam on the Chenab and the Kishanganga project on the Neelum give New Delhi physical control over flows that sustain roughly ninety percent of Pakistan’s agricultural production. When India closed the dam gates, it did not trigger an immediate famine or an overnight collapse of Pakistani agriculture. What it did was far more consequential as a strategic signal. It demonstrated that India possesses the physical infrastructure, the political will, and the legal framing to cause precisely such a catastrophe, whenever it chooses, for as long as it chooses. The broader overview of the treaty’s role as a strategic instrument traces how this moment was decades in the making. This article goes deeper, examining the dam-level operational detail, the downstream vulnerability mathematics, and the legal and ethical battleground on which the next phase of this confrontation will be fought.

The Treaty That Survived Three Wars

The Indus Waters Treaty stands as one of the most resilient bilateral agreements in modern diplomatic history. Signed on September 19, 1960, by Indian Prime Minister Jawaharlal Nehru and Pakistani President Ayub Khan, it was the product of nearly a decade of negotiations brokered by the World Bank under the leadership of David Lilienthal, the former head of the Tennessee Valley Authority. The treaty emerged from a crisis that began almost immediately after Partition. When the short-term Standstill Agreement governing water flows expired in April 1948, India halted the flow of water into Pakistan’s canals, triggering a major agricultural crisis in Punjab. The Inter-Dominion Accord of May 1948 provided a temporary solution, allowing India to restore supplies in exchange for annual payments, but both sides understood that a permanent framework was essential.

The genius of the treaty lay in its simplicity. Rather than attempting to share water from each river proportionally, a formula that would have required perpetual negotiation and constant monitoring, the World Bank mediators proposed a clean geographic division. Three eastern rivers, the Ravi, the Beas, and the Sutlej, were allocated exclusively to India. Three western rivers, the Indus, the Jhelum, and the Chenab, were reserved primarily for Pakistan’s use. India retained limited rights on the western rivers, specifically for non-consumptive purposes such as domestic use, navigation, and run-of-the-river hydroelectric power generation. The treaty established a Permanent Indus Commission with one commissioner from each country, created mechanisms for dispute resolution through neutral experts and the Permanent Court of Arbitration at The Hague, and required each party to notify the other of any engineering works that might affect water flows.

Negotiations between India and Pakistan over the Indus system had been contentious long before the World Bank’s involvement. Lilienthal’s proposal for joint management of the rivers as a single engineering system, published as an article in a prominent American magazine in 1951, was the intellectual foundation on which the treaty was built. His vision was explicitly inspired by the Tennessee Valley Authority model, in which a single institution manages an entire river basin for the benefit of all users regardless of political boundaries. Neither India nor Pakistan was willing to accept joint management, but the proposal reframed the negotiation from a zero-sum dispute over water volumes to an engineering problem with a divisible solution. Eugene Black, the World Bank president who championed the mediation, invested significant institutional prestige in the effort, dispatching a team of engineers and economists who spent nearly a decade shuttling between New Delhi, Karachi, and Washington to produce the framework that would eventually become the treaty.

The practical effect of this division was profound. Pakistan received the three rivers that carried the overwhelming majority of the system’s total flow. The western rivers account for roughly eighty percent of the Indus system’s annual discharge, a recognition of Pakistan’s far greater agricultural dependency on the basin. In exchange, Pakistan received financial assistance from the World Bank, the United States, the United Kingdom, Canada, Australia, and New Zealand to construct replacement infrastructure, specifically the Mangla Dam on the Jhelum and the Tarbela Dam on the Indus, along with a network of link canals designed to transfer water from the western rivers to regions previously irrigated by the eastern rivers that now belonged to India.

What made the treaty remarkable was its durability under pressure. During the 1965 war, both nations continued to honor the agreement’s water-sharing provisions even as their armies clashed across the border. The 1971 war, which resulted in the dismemberment of Pakistan and the creation of Bangladesh, did not produce a single documented violation of the Indus Waters Treaty by either side. The Kargil conflict of 1999, fought in the mountains from which several of these rivers originate, left the treaty untouched. The 2001 military standoff after the Indian Parliament attack, which brought a million soldiers to the border, produced threats to abrogate the treaty but no actual disruption. The 2008 Mumbai attacks, which killed 166 people in India’s financial capital, generated intense domestic pressure to use water as a retaliatory tool, but the Manmohan Singh government explicitly refused to link the treaty to the terrorist attack.

This history matters because it establishes precisely what India broke in April 2025. The treaty was not merely an agreement about water. It was the last functional diplomatic link between two nuclear-armed states, the one commitment that both sides had honored through every other form of hostility. Its survival through multiple wars had become a signal of minimum baseline restraint, evidence that despite everything, some boundaries would not be crossed. India’s decision to place it in abeyance was therefore not simply a water management decision or even a strategic escalation. It was the removal of the last remaining rule in a conflict that had increasingly dispensed with all others.

The decision came on Day 2 of the fourteen-day escalation sequence that would culminate in Operation Sindoor. The treaty suspension was the second of fourteen calibrated steps, following the immediate diplomatic downgrade and preceding the revocation of the Simla Agreement. Each step was designed as a signal, a chance for Pakistan to respond with action against the groups responsible for Pahalgam. Pakistan responded to none of them, and the escalation continued until missiles replaced diplomacy on May 7, 2025.

Pakistan’s Absolute Dependency on the Indus

To understand why the treaty’s suspension constituted an existential threat to Pakistan, it is necessary to grasp the totality of Pakistan’s dependency on the Indus River system. No other major nation in the world is as dependent on a single river basin for its survival as Pakistan is on the Indus. The numbers are not merely alarming in aggregate. They describe a country whose entire economic, agricultural, and demographic structure has been built around the assumption that river water will continue to flow.

Approximately ninety percent of Pakistan’s agricultural production depends on water from the Indus Basin Irrigation System, the world’s largest contiguous irrigation network. This system, originally constructed during the British colonial era and expanded after independence, draws water from the Indus and its five major tributaries through a network of barrages, headworks, link canals, and distributaries that stretches across the entire breadth of the country. The system irrigates roughly 16 million hectares of cultivated land, an area roughly the size of England. Without the irrigation network, most of this land would revert to the arid scrubland that characterizes the rest of the Indus plain.

Agriculture contributes approximately twenty-three percent of Pakistan’s gross domestic product directly and employs roughly forty-two percent of the country’s labor force. These figures, while significant, understate the true dependency. Agricultural products form the foundation of Pakistan’s textile sector, which is the country’s largest industrial employer and its primary source of export earnings. Cotton, wheat, rice, and sugarcane, the four dominant crops, are all irrigation-dependent in Pakistan’s climate. A sustained reduction in Indus flows would therefore cascade through the entire economy, from the farm to the factory to the export terminal.

The dependency extends beyond agriculture. Roughly one-third of Pakistan’s electricity generation comes from hydropower, with the Tarbela Dam on the Indus and the Mangla Dam on the Jhelum providing the bulk of this capacity. The Neelum-Jhelum Hydropower Plant, Pakistan’s largest in Pakistan-occupied Kashmir with 969 megawatts of installed capacity, draws its water from the same Neelum River that India’s Kishanganga project diverts upstream. Any reduction in river flows directly reduces electricity generation, compounding an energy crisis that Pakistan has struggled with for decades. The damage sustained by the Neelum-Jhelum facility during the 2025 conflict further degraded this capacity.

Major urban centers depend on the Indus system for drinking water and municipal supplies. Karachi, Pakistan’s largest city with over fifteen million residents, receives a significant portion of its water from the Indus through canals that connect the river to the city’s reservoirs. Lahore, Multan, Hyderabad, and Sukkur all draw directly from the Indus or its tributaries. Any sustained disruption to flows would create not only an agricultural crisis but a humanitarian one, affecting drinking water access for tens of millions of urban residents who have no alternative source.

Pakistan’s water storage capacity compounds the vulnerability. The country has storage capacity sufficient for only about thirty days of supply, a figure that the United Nations has described as catastrophically inadequate for a country with Pakistan’s climatic characteristics. The recommended benchmark for a nation in Pakistan’s arid zone is 1,000 days of storage capacity. This means that Pakistan has almost no buffer against any disruption, whether from drought, upstream diversion, or deliberate action. A thirty-day cessation of Indus flows would exhaust Pakistan’s reserves entirely, leaving the country with no stored water to sustain agriculture, industry, or domestic consumption. This is not a theoretical vulnerability. It is a mathematical certainty that Pakistan’s own water management authorities have documented extensively.

Per capita water availability in Pakistan has declined precipitously over the past seven decades, falling from approximately 5,260 cubic meters per person at independence in 1947 to below 1,000 cubic meters today, the internationally recognized threshold for water scarcity. The population has quadrupled since independence while the total available water has remained essentially constant. By 2025, Pakistan extracted roughly 162 percent of its total renewable freshwater resources, a figure that means the country was drawing down groundwater at a rate that exceeds natural replenishment. The Indus system was already under extreme stress before India’s suspension of the treaty added an entirely new category of threat.

The geographic distribution of vulnerability follows the rivers themselves. Pakistan’s Punjab province, the country’s agricultural heartland, depends primarily on the Chenab and Jhelum for irrigation. These are precisely the rivers over which India has the most direct physical control through the Baglihar and Kishanganga projects. Sindh province, downstream of Punjab, depends on whatever flows remain after Punjab’s extraction, making it doubly vulnerable to any upstream reduction. The inter-provincial water disputes that already plague Pakistan’s domestic politics would be dramatically intensified by any external reduction in supply, creating political instability that compounds the agricultural and economic effects.

Brahma Chellaney, the New Delhi-based strategic analyst who has written extensively on water geopolitics, has argued that India’s control over the Indus tributaries gives it a permanent strategic advantage that transcends conventional military calculations. In his assessment, water control is the ultimate form of leverage because it targets the foundation of a state’s existence, not its military apparatus. A country can survive the loss of a war. Whether it can survive the loss of its water supply is a different question entirely.

Chellaney’s framing finds support in Pakistan’s own internal water politics, which illustrate how acute the resource pressures already are before any external disruption. Sindh province, the downstream riparian on the Indus, has long accused Punjab, the upstream province, of taking more than its allocated share of water. Violent protests, political standoffs, and legal battles over inter-provincial water distribution have been a recurring feature of Pakistani domestic politics since independence. When the federal government announced plans in 2023 to develop new canals on the upper Indus, thousands of Sindhi residents protested in the streets, fearing that their already-reduced water share would decline further. If India were to reduce upstream flows on the Chenab or Jhelum, the inter-provincial competition for the diminished supply would intensify exponentially, creating internal political pressures that could rival the external ones.

Groundwater depletion compounds the surface-water vulnerability. In 2021, Pakistan extracted approximately 162 percent of its total renewable freshwater resources, meaning the country was consuming groundwater at a rate that dramatically exceeds natural replenishment. Aquifer levels have dropped precipitously across Punjab and Sindh over the past two decades as farmers drilled deeper and deeper to compensate for inadequate canal supplies. A reduction in surface water availability from upstream restrictions would accelerate this groundwater depletion, creating a compounding crisis in which both sources of water decline simultaneously. Several districts in southern Punjab have already reported tube wells running dry during the summer months, forcing farming families to abandon land their families cultivated for generations.

Climate change introduces an additional dimension of vulnerability that neither the original treaty nor subsequent negotiations have addressed. Glaciers in the Karakoram and Himalayan ranges that feed the Indus system are retreating, altering the seasonal timing and volume of river flows. Scientific projections suggest that while total annual flows may remain relatively stable in the medium term, the peak flow period could shift earlier in the year, and year-to-year variability could increase substantially. For a country with only thirty days of storage capacity, increased variability is nearly as dangerous as reduced total flow, because the infrastructure lacks the buffering capability to manage unpredictable surges and shortfalls.

How India Weaponized the Treaty in 2025

The weaponization of the Indus Waters Treaty did not happen in a single dramatic moment. It unfolded through a sequence of carefully calibrated actions across the fourteen days between the Pahalgam attack and Operation Sindoor, each designed to demonstrate a new dimension of India’s willingness to use every available tool of statecraft against Pakistan.

New Delhi’s first step was legal and declaratory. On April 23, 2025, one day after the Pahalgam massacre, the Indian government announced the suspension of the Indus Waters Treaty, citing national security concerns and Pakistan’s continued sponsorship of terrorism as grounds for placing the agreement in abeyance. The legal mechanism India employed was significant. Rather than formally abrogating the treaty, which would have created immediate international legal complications, India described the action as a temporary suspension, a distinction that preserved the option of reinstatement while delivering the strategic message that the treaty was no longer sacrosanct.

The second step was physical. On May 4, 2025, India began closing the sluice gates of the Baglihar Dam on the Chenab River. The closure was described by Indian officials as a short-term punitive action, language that simultaneously acknowledged the action was retaliatory and suggested it could be reversed if Pakistan responded appropriately to India’s demands regarding the Pahalgam perpetrators. Simultaneously, India initiated reservoir flushing operations at both the Salal and Baglihar projects, a procedure designed to clear accumulated sediment from the reservoirs and boost their holding capacity. These flushing operations, conducted outside the normal seasonal window and without the prior notification to Pakistan that the treaty requires, were technically violations of the treaty’s operational provisions, though India’s position was that the treaty was already suspended.

A third step was preparatory. Indian authorities signaled that similar measures were being prepared at the Kishanganga Dam on the Neelum River, the Jhelum tributary that flows into Pakistan-occupied Kashmir. The Kishanganga project, which diverts water from the Kishanganga through a 23-kilometer tunnel to a powerhouse in the Jhelum basin, already reduced downstream flows into the Neelum Valley. The prospect of further restriction at Kishanganga threatened to compound the impact on Pakistan’s already-stressed hydropower capacity in PoK.

Timing was not coincidental. They fell on Day 13 of the fourteen-day escalation sequence, two days before the missile strikes of Operation Sindoor. The water weaponization served multiple strategic purposes simultaneously. It demonstrated India’s willingness to employ economic warfare alongside the diplomatic and military tracks. It created additional pressure on Pakistan’s already-stressed economy. It signaled to the international community that India was prepared to use every tool short of military force, building legitimacy for the military action that would follow when Pakistan failed to respond to any of the preceding steps. And it established a precedent that the treaty’s protections were conditional on Pakistan’s behavior regarding terrorism, a framing that fundamentally altered the calculus of the bilateral relationship.

A complete timeline of the 2025 crisis shows how the water weaponization fit into a broader pattern of escalation that included diplomatic downgrade, the suspension of bilateral trade, visa restrictions, and the closure of the Attari-Wagah border crossing. Each measure targeted a different dimension of Pakistan’s vulnerability. The trade suspension struck at the economy. The diplomatic measures isolated Pakistan internationally. The water restriction struck at the country’s physical survival. Together, they constituted the most comprehensive application of coercive pressure by one nuclear state against another outside of active military conflict.

Indian government officials were careful to frame the water actions as reversible and proportionate. The Ministry of External Affairs described the treaty suspension as a response to Pakistan’s failure to act against the perpetrators of the Pahalgam attack, implicitly offering restoration of the treaty as an incentive for compliance. This framing served dual purposes. Domestically, it demonstrated the government’s willingness to take decisive action. Internationally, it positioned the treaty suspension as a consequence of Pakistan’s behavior rather than as an act of aggression, placing the burden of restoration on Islamabad rather than New Delhi.

The Baglihar Dam on the Chenab

The Baglihar Dam, officially known as the Baglihar Hydroelectric Power Project, sits at the center of the water weaponization story. Located on the Chenab River in the Ramban district of Jammu and Kashmir, approximately fifty kilometers from the district headquarters, the dam has been a source of bilateral controversy since its construction began in 1999. It is a run-of-the-river power project, meaning it is designed to use the natural flow of the river to generate electricity rather than to store large volumes of water. But the distinction between a run-of-the-river project and a conventional storage dam is less clear-cut than the technical classification suggests. The Baglihar Dam has the physical infrastructure to regulate the timing and volume of water releases downstream, and it is this capability that makes it a strategic instrument.

The dam itself is a concrete gravity structure measuring 144.5 meters in height and 363 meters in length, with a total structural volume of 1.9 million cubic meters. The reservoir created behind the dam has a storage capacity of approximately 475 million cubic meters. The project was developed in two phases, each with an installed generating capacity of 450 megawatts, bringing the total capacity to 900 megawatts. Six Francis turbines, each capable of producing 150 megawatts, generate electricity when water is channeled through diversion tunnels to the underground powerhouse, a massive cavern measuring 221 meters in length, 24 meters in width, and 51 meters in height. The first phase was commissioned in 2008 and the second phase in 2015, giving India full operational control over the facility for a decade before the 2025 crisis.

Pakistan’s objections to the Baglihar Dam predated the crisis by more than two decades. When construction began in 1999, Islamabad immediately protested, arguing that the dam’s design parameters violated the Indus Waters Treaty. The core of Pakistan’s complaint centered on the dam’s spillway height and reservoir capacity. Pakistan argued that these design features gave India the ability to accelerate, decelerate, or block the flow of the Chenab at will, a capability that the treaty was supposed to prevent. Under the treaty’s provisions, India is permitted to construct run-of-the-river projects on the western rivers but is prohibited from designs that would allow it to manipulate downstream flows for purposes other than power generation.

Between 1999 and 2004, India and Pakistan held multiple rounds of talks on the Baglihar design without reaching agreement. In 2005, Pakistan invoked the treaty’s dispute resolution mechanism and requested the World Bank to appoint a neutral expert. Professor Raymond Lafitte, a Swiss civil engineer, was appointed to adjudicate the dispute. His ruling, delivered in February 2007, was a partial victory for each side. Lafitte ordered some modifications to the dam’s design, including a reduction in the height of the dam structure and adjustments to the pond capacity, but ruled that the project could proceed. The modifications were implemented, and the first phase of the project began generating power the following year.

What the Lafitte ruling did not and could not address was the fundamental strategic reality that the dam’s existence created. Even a run-of-the-river project with a compliant design gives the upstream country the ability to regulate water flows in the short term. The Baglihar reservoir can hold approximately 475 million cubic meters of water. When the sluice gates are closed, water accumulates behind the dam rather than flowing downstream. When they are opened, the accumulated water is released, creating a surge. The ability to control this timing, to hold water back or release it, is the operational mechanism of water weaponization. It does not require a massive storage reservoir or a permanent diversion. It requires only the physical infrastructure to regulate flow, which the Baglihar Dam provides.

Pakistan’s strategic analysts had warned about precisely this scenario for years before the 2025 crisis. General Khalid Kidwai, the former head of Pakistan’s Strategic Plans Division, which oversees the country’s nuclear program, had cited water infrastructure vulnerability in multiple assessments of the bilateral threat environment. Senior Pakistani diplomats at international forums consistently highlighted the gap between the treaty’s run-of-the-river provisions and the operational reality of dams that could regulate flows regardless of their technical classification. Islamabad’s inability to prevent Baglihar’s construction despite years of diplomatic and legal effort became, in Pakistani strategic circles, a case study in the limits of international law when the upstream power possesses both the engineering capability and the political will to proceed regardless of downstream objections.

Controversy around the Baglihar project intensified when India began filling the reservoir in 2008. Pakistani monitoring stations recorded temporary reductions in Chenab flows that Islamabad attributed to the filling process. A meeting of the Permanent Indus Commission in June 2010 resulted in a resolution regarding the initial filling, with Pakistan agreeing not to raise the issue further. However, the episode reinforced Pakistani suspicions that India could use the filling and drawdown cycle of the reservoir to create controlled disruptions in downstream flows, even during normal operations. Every time the dam’s sluice gates were adjusted for maintenance, seasonal management, or sediment flushing, downstream monitoring stations in Pakistani Punjab registered the changes, creating a perpetual state of hydrological anxiety.

When India closed the Baglihar gates on May 4, 2025, the immediate downstream effects were visible and dramatic. Water levels in the Chenab below the dam dropped significantly, with widely circulated footage showing sections of the riverbed that were normally submerged now exposed and walkable. Pakistani monitoring stations along the Chenab registered reduced flows within hours, and local residents in towns along the river reported water levels dropping visibly over the course of a single day. Social media amplified the visual evidence, with videos of dry or near-dry riverbed sections going viral on both sides of the border, framing the closure as a dramatic act of coercion regardless of its actual hydrological significance.

Pakistan’s Water and Power Development Authority initially denied that the closure had affected downstream flows, claiming that water levels were normal for the season. This denial was difficult to sustain in the face of visual evidence, though WAPDA was correct that the short-term impact on total supply was limited. The Chenab is one of three western rivers, and the Baglihar dam alone cannot hold back the river’s entire flow for more than a limited period. However, the distinction between short-term symbolic impact and long-term strategic capability was precisely the point. India was not attempting to create an immediate crisis. It was demonstrating the mechanism through which one could be created, at a time of India’s choosing, with infrastructure that already exists and cannot be dismantled through legal proceedings.

Strategic significance of the closure lay not in its immediate hydrological impact but in its demonstration value. India showed that it possessed the physical infrastructure to reduce Chenab flows to Pakistan, the political will to use that infrastructure, and the legal framing to justify the action. The closure also revealed that India was prepared to absorb the domestic costs of the action, including the temporary reduction in the Baglihar project’s own power generation, in pursuit of strategic objectives. For Pakistan’s strategic planners, the message was unambiguous. The Baglihar Dam, which Islamabad had spent two decades trying to prevent, modify, or constrain through legal and diplomatic channels, had become exactly what Pakistan had always feared it would become.

The dam’s operational characteristics amplify this concern. All six turbines operate for approximately six months annually, depending on water availability. Stored water is channeled through diversion tunnels to the turbines, generating between 450 and 600 megawatts at typical flow rates. After power generation, the water is released back into the Chenab. This means that even during normal operations, India controls the timing of water releases, creating a structural dependency that Pakistan cannot eliminate short of dismantling the dam itself. The reservoir flushing operations that India conducted simultaneously with the gate closure, intended to boost the reservoir’s holding capacity by clearing accumulated sediment, further enhanced India’s ability to control the timing and volume of releases.

The Kishanganga Dam on the Neelum

If the Baglihar Dam represents India’s control over the Chenab, the Kishanganga Hydroelectric Project represents its control over the upper reaches of the Jhelum system. The project, officially called the Kishanganga Hydroelectric Plant, is located five kilometers north of Bandipore in Jammu and Kashmir. It operates on a fundamentally different principle from Baglihar. Rather than generating power from the river at its existing location, the Kishanganga project diverts water from the Kishanganga River, a tributary of the Jhelum, through a 23.25-kilometer headrace tunnel to an underground powerhouse at Bandipore in the Jhelum basin. The diversion is the point of contention. Water that would otherwise flow northward into the Neelum Valley of Pakistan-occupied Kashmir is redirected southward through the tunnel, generating 330 megawatts of electricity before being discharged into Wular Lake on the Indian side.

The project was developed by the National Hydroelectric Power Corporation and features a 37-meter-high concrete-faced rockfill dam at Gurez. Three 110-megawatt Francis turbines generate an annual energy output of approximately 1,713 million units. Construction began in 2007 and entered commercial operation in 2018, after protracted legal disputes that reached the Permanent Court of Arbitration at The Hague. The project cost approximately 864 million dollars, a figure that reflects both the engineering complexity of the 23-kilometer tunnel through Himalayan rock and the legal costs of defending the project against Pakistani challenges.

Pakistan’s opposition to the Kishanganga project was even more intense than its opposition to Baglihar, and for good reason. The Kishanganga River, known as the Neelum River in Pakistan, flows through the Neelum Valley of Pakistan-occupied Kashmir before meeting the Jhelum near Muzaffarabad. Pakistan was constructing its own hydropower facility downstream, the Neelum-Jhelum Hydropower Plant, with an installed capacity of 969 megawatts. The Kishanganga project’s diversion of water upstream directly reduces the volume available for Pakistan’s downstream facility. India estimates that the Kishanganga project diverts approximately ten percent of the river’s total flow. Pakistani assessments place the figure closer to thirty-three percent. The actual impact depends on seasonal variations, flow conditions, and operational decisions at both facilities, but even the lower estimate represents a meaningful reduction in Pakistan’s hydropower capacity.

In 2010, Pakistan appealed to the Permanent Court of Arbitration, arguing that the Kishanganga project violated the Indus Waters Treaty by increasing the catchment of the Jhelum River at Pakistan’s expense. The court halted construction temporarily in October 2011 while it considered Pakistan’s objections. In February 2013, the court ruled that India could proceed with the diversion, subject to maintaining a minimum continuous downstream flow of nine cubic meters per second into the Neelum. This minimum flow requirement, equivalent to approximately 318 cusecs, was intended to balance India’s rights to hydropower generation against the need to maintain downstream river ecology and Pakistan’s own water uses. India had initially proposed a lower minimum, and the court’s ruling represented a compromise that neither side found entirely satisfactory.

Construction of the Kishanganga project was itself a remarkable engineering achievement that reflected India’s determination to establish hydropower infrastructure on the western rivers regardless of Pakistani objections. Boring a 23-kilometer tunnel through the Himalayan rock between the Gurez Valley and the Jhelum basin required advanced tunnel-boring technology and years of work in some of the most geologically challenging terrain on earth. Avalanches, rock bursts, and extreme winter conditions delayed the project repeatedly, pushing the completion date from the original 2016 target to the eventual 2018 commissioning. Workers operated at altitudes exceeding 2,500 meters, in a region where temperatures drop below minus twenty degrees Celsius for months at a time and where the Line of Control runs within kilometers of the project site.

Indian Prime Minister Narendra Modi inaugurated the completed project in May 2018, traveling to the remote site in a move that underscored the strategic significance India attached to the facility. Pakistan condemned the inauguration and warned that the project would reduce flows to its downstream Neelum-Jhelum facility. Feroz Hassan Khan, the Pakistani scholar and author of “Eating Grass: The Making of the Pakistani Bomb,” characterized the Kishanganga commissioning as a provocation that demonstrated India’s willingness to change the hydrological facts on the ground while Pakistan exhausted itself in legal proceedings. His assessment highlighted a structural frustration in Pakistan’s strategic community: the legal mechanisms of the treaty moved slowly, but construction proceeded rapidly, creating a dynamic in which Pakistan’s legal victories arrived after the engineering realities had already been established.

The Kishanganga project’s strategic significance in the 2025 crisis was amplified by its geographic relationship to the Neelum-Jhelum facility downstream. The Neelum-Jhelum plant, Pakistan’s largest hydropower project in PoK, was reportedly damaged during the 2025 conflict, reducing its already-constrained output. With the upstream Kishanganga project already diverting water and the downstream Neelum-Jhelum facility damaged, the Neelum Valley faced a compounding water and energy crisis that illustrated the cascading vulnerabilities of Pakistan’s hydropower infrastructure in PoK.

When Indian authorities signaled in May 2025 that similar restrictions to those imposed at Baglihar were being prepared at Kishanganga, the threat was not merely to Pakistan’s water supply but to its electricity generation. The combined effect of Kishanganga diversion and Neelum-Jhelum damage would remove a substantial portion of PoK’s electrical capacity from the grid, creating energy shortages that would compound the broader economic pressures created by the trade suspension and the military conflict itself.

The Salal Dam and the Broader Infrastructure of Control

The Baglihar and Kishanganga projects are the most prominent elements of India’s water infrastructure on the western rivers, but they are not the only ones. The Salal Dam, also on the Chenab River, upstream of Baglihar in the Reasi district of Jammu and Kashmir, is a 690-megawatt hydroelectric facility that India constructed under a bilateral agreement reached in 1978. The Salal project was the first major Indian hydroelectric facility on the western rivers and was constructed with Pakistan’s explicit consent, a contrast with the contested Baglihar and Kishanganga projects.

Salal’s history illustrates an earlier era of bilateral cooperation. Negotiations over the design extended from 1970 to 1978, with Pakistan initially objecting to project specifications before agreeing to a modified design through bilateral channels, without involving the World Bank. From Islamabad’s perspective, the cooperative spirit that produced the Salal agreement has not been replicated in any subsequent dispute, a decline that mirrors the broader deterioration of the relationship.

The Salal Dam is a rockfill structure that predates the current era of acute water tensions. Its construction was negotiated bilaterally without resort to the treaty’s dispute resolution mechanisms, reflecting a period when both countries were still committed to managing the Indus system cooperatively. However, the dam’s existence adds to India’s cumulative capacity to regulate Chenab flows. During the 2025 crisis, India conducted reservoir flushing operations at Salal simultaneously with the Baglihar gate closure, an action designed to boost the reservoir holding capacity of both projects. Combined flushing at Salal and closure at Baglihar temporarily reduced downstream flows below normal levels, though the short-term hydrological impact was limited by the seasonal timing.

Beyond Salal, a constellation of smaller and medium-scale projects extends India’s footprint across the western rivers. The Uri Hydroelectric Project on the Jhelum, with 480 megawatts of installed capacity near the Line of Control, was itself the site of a devastating terrorist attack in September 2016 that killed nineteen soldiers and triggered India’s first publicly acknowledged surgical strikes across the LoC. The Dul Hasti project on the Chenab, with 390 megawatts, provides yet another node. Several under-construction facilities, most notably the 850-megawatt Ratle Hydroelectric Plant on the Chenab, further extend India’s infrastructure of control. Ratle is currently the subject of separate proceedings at the Permanent Court of Arbitration, with Islamabad alleging treaty violations similar to those it raised against Baglihar and Kishanganga. Regardless of the legal outcome, construction has proceeded, and when completed, the facility will add another layer of control over Chenab flows.

Pakal Dul, Kiru, Kwar, and Sawalkot represent additional projects at various stages of planning or construction on the Chenab. When all facilities are operational, India will have an integrated network stretching along the entire navigable length of the Chenab within its administered territory. Collectively, this network will have installed capacity exceeding 4,000 megawatts and the operational capability to modulate downstream flows at multiple points. For farmers in Punjab province across the border, who receive their irrigation from canals fed by the Chenab after it enters the country, this network represents a permanent structural vulnerability that no legal framework can fully address.

The cumulative picture is one of increasing Indian control over the hydrology of rivers that the treaty allocates primarily to Pakistan. Each individual project may comply with the treaty’s technical requirements for run-of-the-river design. Collectively, they create a strategic reality in which India possesses the infrastructure to modulate Pakistan’s water supply across multiple rivers simultaneously. This is the fundamental asymmetry that the 2025 crisis exposed. The treaty was designed to guarantee Pakistan’s access to the western rivers. India’s infrastructure development has created the physical capability to restrict that access, and the 2025 suspension demonstrated the political willingness to exercise that capability.

Chellaney’s analysis of this dynamic argues that India’s dam construction on the western rivers has been strategically motivated from the beginning, not merely as hydropower infrastructure but as instruments of leverage. Whether or not one accepts this interpretation of Indian intent, the operational reality is that the infrastructure exists, and its capabilities were demonstrated in 2025. The question for Pakistan’s strategic planners is not whether India intended these facilities as weapons when it built them. The question is what prevents India from using them as weapons in the future, given that the treaty that was supposed to provide that protection has already been suspended once.

Pakistan’s Response and the Act of War Declaration

Pakistan’s reaction to the treaty suspension and the dam closures was immediate, intense, and revealing of the depth of existential anxiety that water weaponization triggers in Islamabad. The Pakistani government issued a formal statement declaring that any attempt to stop or divert the flow of water belonging to Pakistan under the Indus Waters Treaty would be considered an act of war. This language was not metaphorical. It reflected a decades-old Pakistani strategic doctrine that treats water security as equivalent to territorial integrity, a core interest that justifies military response.

The act of war declaration drew on a long history of Pakistani strategic thought regarding water. Since the Partition crisis of 1948, when India’s brief suspension of canal flows triggered an agricultural emergency in Pakistani Punjab, water has occupied a unique position in Pakistan’s threat perception matrix. The country’s military establishment has consistently identified water as an existential vulnerability alongside its nuclear deterrent, its Kashmir policy, and its alliance relationships. General Asim Munir, Pakistan’s Chief of Army Staff, reportedly warned during the crisis that Pakistan would destroy any future dam built by India with ten missiles and stated that the Indus River is not India’s family property. Whether this statement represents an actual operational doctrine or rhetorical escalation, it illustrates the intensity of Pakistan’s strategic anxiety regarding water.

Former Foreign Minister Bilawal Bhutto Zardari escalated the rhetoric further, warning on at least two occasions that Pakistan would secure all six rivers by force if water was not shared fairly. In June 2025, following the treaty suspension, Bhutto Zardari declared that continued Indian actions perceived as treaty violations could compel Pakistan to consider military options. In August 2025, at a Sindh government event, he reiterated the warning. These statements, coming from a civilian politician rather than a military figure, reflected the consensus across Pakistan’s political spectrum that water weaponization represents a red line.

The World Bank, which had brokered the original treaty and had served as a facilitator for dispute resolution, declined to intervene in the 2025 crisis. The Bank stated that its role in the treaty was limited to that of a facilitator and that it would not engage in the political dimensions of the dispute. This neutrality was itself a significant development. Pakistan had historically relied on the World Bank as a guarantor of the treaty’s provisions and had invoked the Bank’s dispute resolution mechanisms in the Baglihar, Kishanganga, and Ratle cases. The Bank’s refusal to engage in the 2025 crisis signaled to Islamabad that the institution that had created the treaty could not or would not protect it when a party chose to suspend it unilaterally.

Pakistan’s domestic political response reflected how central water is to national identity. Treaty suspension generated protests, parliamentary debates, and media coverage that framed the issue in civilizational terms. Water in Pakistan is not merely a resource. It is the foundation of the country’s identity as an agricultural nation, the basis of its food security, and the symbol of its vulnerability to Indian coercion. Across all parties, from the ruling coalition to the opposition, the political establishment united around the position that water weaponization constituted an existential threat requiring a comprehensive response.

Provincial reactions revealed fractures that any prolonged crisis would widen. In Sindh, where farmers in the lower reaches of the canal system already face chronic water shortages, the treaty suspension triggered panic about further reductions in an already-inadequate supply. Provincial politicians demanded that the federal government prioritize Sindh’s water allocation, setting up a potential confrontation with Punjab, which controls the upstream distribution infrastructure. In Balochistan, where agriculture is even more marginal and dependent on whatever flows remain after Punjab and Sindh extract their shares, the crisis underscored the province’s perpetual marginalization in national resource allocation. Kashmir’s political leaders in Pakistan-administered territory expressed particular alarm about the Kishanganga diversion’s compounding effect on the Neelum Valley’s already-degraded water supply. Each province’s response reflected its specific vulnerability, and together they illustrated how water restriction from outside the country would amplify internal conflicts that already strain the federation’s cohesion.

Military response included explicit nuclear signaling. Pakistan’s references to its nuclear deterrent in the context of water weaponization were not subtle. The nuclear signals exchanged during the 2025 conflict included Pakistan’s invocation of its full-spectrum deterrence posture, which encompasses tactical nuclear weapons designed for battlefield use. The linkage between water weaponization and nuclear escalation was deliberate, intended to communicate to India and to the international community that Pakistan considers water restriction a form of aggression that falls within the scope of its nuclear doctrine. Whether Pakistan would actually employ nuclear weapons in response to a water crisis remains one of the most dangerous unanswered questions in South Asian strategic studies.

Diplomatic outreach extended beyond bilateral channels. Pakistan appealed to the international community, seeking support from China, Turkey, Saudi Arabia, and the Organisation of Islamic Cooperation. The appeal was framed in humanitarian terms, emphasizing the threat to Pakistan’s food security and the vulnerability of its civilian population. However, the international response was muted, partly because the crisis occurred simultaneously with the military conflict triggered by Operation Sindoor, which dominated international attention, and partly because India’s framing of the suspension as a response to terrorism resonated with several key international actors, particularly the United States.

The Legal and Ethical Battleground

Legal dimensions of India’s treaty suspension are contested terrain, with credible arguments on both sides. India’s position rests on the doctrine of fundamental change of circumstances (rebus sic stantibus), a principle of international law that permits a party to withdraw from a treaty when the conditions that existed at the time of signing have fundamentally changed. India argues that Pakistan’s continued use of terrorism as an instrument of state policy, culminating in the Pahalgam massacre, constitutes a fundamental change that vitiates the treaty’s underlying assumptions of peaceful coexistence.

India also invokes the Vienna Convention on the Law of Treaties, specifically provisions that permit suspension of a treaty in cases of material breach by the other party. New Delhi’s argument is that Pakistan’s sponsorship of terrorism, its consistent provision of safe haven to designated terrorists on NIA charge sheets and Interpol Red Notices, and its systematic failure to act against the perpetrators of attacks against India constitute material breaches of the bilateral obligations that the treaty presupposes. The legal theory is that the Indus Waters Treaty does not exist in isolation. It exists within a broader framework of bilateral relations, and Pakistan’s violations of that broader framework justify India’s suspension of one of its components.

International water law scholars challenge this position vigorously. Undala Alam, a scholar of transboundary water governance, argues that rivers cannot be weaponized regardless of bilateral disputes. The principle of equitable and reasonable utilization, enshrined in the 1997 UN Convention on the Law of the Non-Navigational Uses of International Watercourses, imposes obligations on upstream states that are independent of the bilateral political relationship. Under this framework, India’s obligations to maintain downstream flows derive not from the bilateral treaty alone but from customary international law, and they cannot be suspended unilaterally regardless of Pakistan’s behavior in other domains.

The Helsinki Rules on the Uses of the Waters of International Rivers, adopted by the International Law Association in 1966, established the principle that each basin state is entitled to a reasonable and equitable share of the beneficial uses of the waters of an international drainage basin. While the Helsinki Rules are not binding international law, they have been influential in shaping the customary law framework that governs transboundary water disputes. Under this framework, India’s suspension of the Indus Waters Treaty does not extinguish Pakistan’s rights to the western rivers. Those rights derive from principles that exist independently of the bilateral agreement and would persist even if the treaty were formally abrogated.

The ethical dimensions are equally complex. Water weaponization targets not the Pakistani state but its population. The farmers in Punjab who depend on Chenab water for their wheat and rice crops bear no responsibility for the decisions of Pakistan’s military and intelligence establishment regarding terrorism. The families in Sindh whose drinking water comes from the Indus did not plan the Pahalgam attack. The fishermen in the Indus delta whose livelihoods depend on downstream flows did not shelter the gunmen. Using water as a coercive tool against a state necessarily means using it against a civilian population that cannot influence the state policies that the coercion is designed to change.

This humanitarian dimension is the strongest argument against water weaponization, and it is one that India’s strategic community has not adequately addressed. The government’s framing of the treaty suspension as a response to terrorism focuses on state-level responsibility but does not engage with the population-level consequences. A sustained restriction of water flows would create a humanitarian crisis affecting tens of millions of civilians, most of whom are subsistence farmers with no political influence over Pakistan’s national security policies. The ethical framework that justifies punitive action against a state for sponsoring terrorism does not easily extend to punitive action against that state’s civilian population through the restriction of a resource necessary for survival.

The precedent-setting implications extend beyond South Asia. If India’s suspension of the Indus Waters Treaty is accepted as legitimate in international law, it establishes a template for other upstream nations to use water as a coercive tool against downstream neighbors. Turkey’s control over the Tigris and Euphrates gives it similar leverage over Syria and Iraq. Ethiopia’s Grand Renaissance Dam on the Nile has already generated severe tensions with Egypt and Sudan. China’s dam construction on the upper Mekong affects downstream flows in Myanmar, Laos, Thailand, Cambodia, and Vietnam. Any legitimization of water weaponization in the India-Pakistan context would reverberate across every transboundary river system in the world, potentially destabilizing water-sharing arrangements that sustain hundreds of millions of people.

Examining each parallel reveals why the India-Pakistan case is particularly consequential for international water law. Turkey reduced Euphrates flows to fill the Ataturk Dam reservoir in the 1990s, causing severe water shortages in Syria and contributing to agricultural collapse in the Jazira region. The episode produced political condemnation but no formal legal proceedings and no resolution under international law. Ethiopia’s Grand Ethiopian Renaissance Dam on the Blue Nile has prompted Egypt to threaten military action, with President Sisi stating that Egypt’s water supply is an existential matter beyond negotiation. China’s construction of eleven cascade dams on the upper Mekong has reduced dry-season flows to downstream countries by as much as seventy percent in some years, devastating fisheries and rice paddies in Cambodia and Vietnam. In none of these cases has international law provided an effective remedy for downstream states against upstream coercion.

Undala Alam’s scholarship on transboundary water governance identifies a critical gap in international law regarding enforcement. While principles of equitable utilization and the obligation not to cause significant harm are well-established in theory, no international body possesses the enforcement authority to compel an upstream state to maintain downstream flows when that state has decided, for strategic or political reasons, to reduce them. Courts can rule, experts can opine, and organizations can condemn, but the water flows through territory controlled by the upstream state, and physical control ultimately trumps legal authority. India’s 2025 suspension of the Indus Waters Treaty illustrates this enforcement gap with devastating clarity. Pakistan’s legal rights under the treaty may be well-founded, but those rights are meaningless without a mechanism to enforce them against a state that controls the infrastructure.

Legal scholars at the Graduate Institute in Geneva have noted that the Indus Waters Treaty case raises a particularly complex question about the relationship between different bodies of international law. Can obligations under a specific bilateral treaty (the IWT) be overridden by invocations of self-defense or national security under the broader framework of the UN Charter? India’s implicit argument is that Pakistan’s state sponsorship of terrorism constitutes a threat to India’s security that justifies countermeasures, including treaty suspension. Pakistan’s counter-argument is that the treaty establishes independent obligations regarding a shared natural resource that cannot be abrogated under any circumstances. Resolving this tension between treaty law, humanitarian law, and the law of self-defense would require adjudication at the International Court of Justice, a step that neither party has taken.

The Dam-by-Dam Vulnerability Assessment

The operational reality of India’s water leverage can be understood through a dam-by-dam assessment of the infrastructure that gives New Delhi physical control over flows that Pakistan depends on. Each facility represents a node in a network that, taken together, gives India the theoretical capability to modulate Pakistan’s water supply across multiple rivers simultaneously.

Baglihar on the Chenab, with its 900-megawatt capacity and 475-million-cubic-meter reservoir, provides the most direct and demonstrable form of control. The dam’s sluice gates can be closed to reduce downstream flows and opened to release accumulated water. During the 2025 crisis, the closure of these gates produced visible reductions in the Chenab’s downstream flow, demonstrating the mechanism of control. The dam generates power for approximately six months per year, depending on seasonal water availability. During the remaining months, when water levels are lower, the dam’s ability to modulate flows is reduced but not eliminated. The reservoir flushing capability adds another dimension of control, allowing India to draw down the reservoir and then refill it, creating temporary reductions in downstream flow that can be timed for maximum impact.

Kishanganga operates through diversion rather than storage. Its 330-megawatt capacity diverts water from the Kishanganga into the Jhelum basin, permanently reducing flows into the Neelum Valley. The Permanent Court of Arbitration’s 2013 ruling permits India to maintain this diversion subject to a minimum downstream flow of nine cubic meters per second. However, the minimum flow requirement assumes normal treaty operations. Whether India is bound by the minimum flow requirement when the treaty itself is suspended is an open legal question that neither the court nor the parties have addressed. If India were to reduce downstream flows below the court-mandated minimum during a period of treaty suspension, the Neelum Valley would face severe water shortages that would compound the energy crisis caused by damage to the downstream Neelum-Jhelum facility.

Salal, with its 690-megawatt capacity, adds upstream control on the Chenab above Baglihar. The coordinated operation of Salal and Baglihar gives India the ability to create cascading effects on the Chenab’s flow, with restrictions at Salal reducing the water available to Baglihar’s reservoir, which in turn reduces the water released downstream into Pakistan. The coordination of multiple facilities on the same river creates a compounding effect that is greater than the impact of any single dam.

Uri Hydroelectric, with 480 megawatts of installed capacity on the Jhelum, adds another point of control on the second western river. Located near the Line of Control, the Uri facility operates on a stretch of the Jhelum that flows through Indian-administered Kashmir before entering Pakistan-occupied territory. The Dul Hasti project on the Chenab, with 390 megawatts, provides yet another node. The under-construction Ratle Hydroelectric Plant, when completed, will add 850 megawatts of capacity on the Chenab, further extending India’s infrastructure on Pakistan’s primary agricultural river.

Cumulatively, these projects create a network of control that covers both of Pakistan’s primary agricultural rivers, the Chenab and the Jhelum. The Indus itself, the largest of the western rivers, passes through Indian territory in the mountainous regions of Ladakh, where the topography and limited water volume make diversion less feasible. However, India’s control over the Chenab and Jhelum tributaries is sufficient to create significant downstream impacts, particularly during the dry season when agricultural dependency on canal flows is highest.

Seasonal variation in river flows creates windows of maximum vulnerability that India’s infrastructure can exploit. During winter months from December through February, when snowmelt is minimal and the rivers carry their lowest annual flows, even modest upstream retention can produce meaningful reductions in downstream availability. These are precisely the months when Rabi season crops, particularly wheat, depend most heavily on canal irrigation, creating a convergence of low natural flows and high agricultural demand that maximizes the impact of upstream action. Conversely, during the summer monsoon from July through September, when rivers carry peak flows, upstream retention has a proportionally smaller impact because the sheer volume of water overwhelms the storage capacity of any individual dam. India’s infrastructure is therefore most effective as a coercive tool during the dry season, which is also the season when agricultural consequences are most severe and most rapid.

One dimension of vulnerability that receives insufficient analytical attention is the canal system’s operational fragility. The Indus Basin Irrigation System was designed for continuous flow. Barrages, headworks, and canal offtakes operate on the assumption that river levels will remain within predictable ranges. Sudden fluctuations, whether from upstream dam operations or natural causes, can damage canal infrastructure, disrupt the distribution sequence that allocates water to different canal commands, and create localized surpluses and deficits that take weeks to resolve even after normal flows resume. A deliberate fluctuation in upstream flows, created by alternating between gate closure and rapid release at facilities like Baglihar, could cause more operational disruption to the canal system than a steady reduction of equivalent magnitude. This operational vulnerability adds a dimension of coercive capability that is separate from the total-flow calculations on which most analyses focus.

Agricultural consequences following a sustained closure vary by season and region. During the Rabi season, when winter crops including wheat depend on canal irrigation, a sustained reduction in Chenab flows would begin affecting crop irrigation within weeks. During the Kharif season, when monsoon rains supplement irrigation, the impact would be less immediate but still significant for rice, cotton, and sugarcane cultivation. The thirty-day storage capacity means that Pakistan’s buffer against any disruption is measured in weeks, not months. Beyond that window, agricultural consequences become increasingly severe, with the potential for crop failures, food shortages, and economic disruption that would cascade through the entire economy.

The Humanitarian Cost of Water Weaponization

Any analysis of water weaponization that does not grapple with its humanitarian dimensions is incomplete. The central ethical problem is that water restriction targets a civilian population, not a military establishment or a political leadership. The farmers in Pakistan’s Punjab and Sindh provinces who depend on Chenab and Jhelum water for their livelihoods did not authorize the Pahalgam attack. The women who walk to canals to collect drinking water in Sindh’s villages bear no responsibility for the decisions of Pakistan’s Inter-Services Intelligence directorate. The children who grow up in the Indus flood plain have no influence over whether Pakistan shelters designated terrorists.

Pakistan’s population of approximately 230 million people depends on the Indus system for food, water, and energy. Approximately forty-two percent of the labor force works in agriculture, and their incomes depend directly on water availability. A sustained reduction in Indus flows would reduce crop yields, increase food prices, and push millions of already-marginal farming families below the poverty line. Downstream effects on urban populations would follow as food supplies contracted and prices rose, creating conditions for social unrest and political instability that would compound the crisis.

Wheat is Pakistan’s staple food crop, and its cultivation depends almost entirely on canal irrigation during the Rabi season from November through April. Any reduction in Chenab or Jhelum flows during this period would directly reduce the irrigated acreage available for wheat cultivation, potentially creating a gap between domestic production and consumption that would need to be filled through imports. Pakistan’s foreign exchange reserves, already under severe pressure from years of economic mismanagement and repeated bailouts from the International Monetary Fund, cannot sustain large-scale grain imports over an extended period. Rice, the country’s second-most-important food crop and a major export commodity, depends on Kharif season irrigation from the same rivers. Cotton, the raw material for Pakistan’s textile industry, is similarly irrigation-dependent. Each of these crops represents not merely food but employment, export revenue, and economic stability for millions of households across the country’s agricultural belt.

Fisheries in the Indus delta, where the river meets the Arabian Sea south of Karachi, represent another dimension of vulnerability that receives less attention than agriculture but affects millions of people. Reduced upstream flows directly reduce the volume of freshwater reaching the delta, increasing salinity levels in the mangrove ecosystems that support commercial and subsistence fishing. Over the past two decades, declining river flows have already devastated fishing communities in Sindh’s coastal districts, with reduced catches, collapsing mangrove habitats, and saltwater intrusion into formerly productive agricultural land. Additional upstream restriction would accelerate these trends, potentially rendering large areas of the delta permanently unproductive.

The most vulnerable populations would be affected first and most severely. Small landholders in the tail-end reaches of the canal system, who already receive less water than upstream users, would face complete supply cessation before the impacts were felt by larger, better-connected farmers. Women, who bear the primary responsibility for water collection in rural Pakistan, would face longer and more dangerous journeys to alternative sources. Children, particularly those in families dependent on subsistence farming, would face increased malnutrition and associated health consequences. These are not speculative projections. They are extrapolations from Pakistan’s existing water scarcity crisis, which has already produced per capita water availability below the international threshold for water scarcity.

The counterargument from India’s strategic community is that Pakistan’s civilian suffering from water restriction is the responsibility of Pakistan’s own leadership, whose sponsorship of terrorism has produced the consequences that the population now faces. This argument, while politically effective, is ethically problematic. International humanitarian law recognizes that civilian populations cannot be collectively punished for the actions of their governments, a principle that applies equally to water restriction as it does to military targeting. The Geneva Conventions and their Additional Protocols prohibit attacks on objects indispensable to the survival of the civilian population, a category that unambiguously includes water infrastructure and water supplies.

Whether India’s treaty suspension and dam closures constitute a violation of international humanitarian law is a legal question without a definitive answer, partly because the precedent is so limited. No previous case of water weaponization between nuclear states provides a clear legal framework for analysis. The closest parallel, Turkey’s reduction of Euphrates flows to Syria and Iraq, has generated political condemnation but no formal legal adjudication. The Ethiopian Nile dispute has been addressed through diplomatic channels rather than legal proceedings. India’s 2025 actions are therefore creating new law as much as applying existing frameworks, and the humanitarian implications of the precedent they set will be debated for decades.

Post-Ceasefire Status and the Treaty’s Future

The ceasefire that ended the active military phase of the 2025 conflict on May 10, 2025, did not restore the Indus Waters Treaty. The ceasefire terms focused on the cessation of hostilities and the withdrawal of forces, not on the restoration of suspended bilateral agreements. As of the most recent reporting, the treaty remains in abeyance, a state of legal limbo that leaves Pakistan’s water rights formally unprotected by the agreement that has guaranteed them since 1960.

A year after the suspension, the practical situation at the Baglihar Dam has largely normalized. Reporting from the Chenab Valley indicates that the river is flowing at levels consistent with seasonal norms, with the dam’s sluice gates managed according to operational requirements rather than strategic imperatives. Water stored in the reservoir is channeled through diversion tunnels to run the turbines, generating between 450 and 600 megawatts of electricity, and is then released back into the Chenab. Gates are typically opened when levels rise and closed when they fall, a pattern driven entirely by hydrology rather than politics. Local residents along the Chenab have reported that conditions have returned to pre-crisis norms, with one college student in the area telling journalists that people often sit by the riverbank for the breeze and the view, a quotidian normalcy that belies the strategic transformation the crisis produced.

This normalization, however, does not indicate a restoration of the treaty. It indicates that India has chosen not to sustain the punitive restrictions, a decision that can be reversed at any time with no legal impediment and minimal operational cost. Indian officials have made no public commitment to maintaining current flow patterns, and no bilateral mechanism exists to require notification before any future adjustment. From Islamabad’s perspective, the normalization of flows is a decision by India’s government, not a right guaranteed by any agreement. That distinction, between a voluntary practice and a legal obligation, is the core of what changed in April 2025.

The institutional mechanisms created by the treaty remain suspended. The Permanent Indus Commission, which met regularly to discuss water management issues and resolve minor disputes before they escalated, is not functioning. The notification requirements that obligated each party to inform the other of engineering works or operational changes are not being observed. The dispute resolution mechanism, which provided a pathway from bilateral consultation through neutral expert to the Permanent Court of Arbitration, is in abeyance alongside the treaty itself. Pakistan retains the theoretical option of approaching the International Court of Justice or other international bodies, but the legal standing for such a complaint is uncertain when the treaty that defines the parties’ obligations is itself suspended.

The future of the treaty depends on factors that extend well beyond water management. Restoration would require a broader normalization of India-Pakistan relations that neither side appears to be pursuing. India’s position is that the treaty was suspended because of Pakistan’s sponsorship of terrorism, and restoration is conditional on Pakistani action against the groups responsible for Pahalgam and other attacks. Pakistan’s position is that the treaty is an independent international obligation that cannot be linked to other bilateral issues. These positions are mutually exclusive, and neither side shows any inclination to compromise.

Several academic and policy proposals have attempted to bridge this gap. Researchers at the Stimson Center in Washington have proposed a phased restoration framework in which India would reinstate the treaty’s technical provisions, specifically the Permanent Indus Commission and notification requirements, as a confidence-building measure, while deferring the question of full restoration to a broader bilateral negotiation. Pakistani water policy experts have proposed internationalizing the treaty by inviting the United Nations Environment Programme or the International Court of Justice to assume a guarantor role that the World Bank has declined to fill. Indian strategic analysts have rejected both proposals, arguing that any softening of the conditionality would reduce the coercive pressure that the suspension is designed to maintain.

Former Pakistani diplomats have privately acknowledged that a restored treaty would likely include terms less favorable to Pakistan than the original 1960 agreement. India’s infrastructure on the western rivers has expanded enormously since 1960, creating operational realities that any new framework would need to accommodate. Pakistan’s bargaining position is weaker now than at any point since Partition, both because of its economic fragility and because the international community’s sympathy for its position has been diminished by the Pahalgam attack and years of documented state sponsorship of terrorism. Recognition of this deteriorated negotiating position makes Pakistan reluctant to reopen treaty negotiations, preferring to insist on restoration of the original terms rather than risk a renegotiation that could formalize India’s expanded control.

Water management professionals on both sides of the border have expressed concern that the politicization of the Indus system threatens the technical cooperation that has quietly continued even during periods of extreme bilateral tension. Hydrologists, irrigation engineers, and dam operators on both sides have historically maintained professional relationships and information exchanges that facilitated efficient basin management. The suspension of the Permanent Indus Commission has disrupted these channels, creating information gaps that could lead to operational miscalculations. Without regular data sharing about dam operations, reservoir levels, and seasonal flow projections, both sides are managing their portions of the basin with incomplete information, increasing the risk of unintended consequences that could affect civilian populations on both sides of the border.

A deeper question is whether the Indus Waters Treaty, even if restored, can ever again function as it did before 2025. The treaty’s value derived not merely from its legal provisions but from the assumption that both parties would honor it unconditionally. That assumption has now been shattered. India has demonstrated that the treaty’s protections are conditional, subject to suspension when India determines that Pakistan’s behavior warrants punitive action. Pakistan has been forced to confront the reality that the legal framework it relied on for sixty-five years can be removed by unilateral decision. Even a formal restoration of the treaty cannot undo the demonstration effect of the 2025 suspension. Both parties now know that the treaty can be weaponized, and that knowledge will shape strategic calculations on both sides for decades.

Implications for India’s broader shadow war against terrorism are significant. Water weaponization adds a non-military dimension to India’s coercive toolkit, complementing the targeted elimination campaign and the conventional military capability demonstrated in Operation Sindoor. Together, these instruments create a comprehensive pressure framework that targets Pakistan across diplomatic, economic, military, and now hydrological dimensions simultaneously. The Balakot airstrike of 2019 crossed the threshold of using air power inside Pakistani territory. Sindoor crossed the threshold of missile strikes and aerial combat between nuclear powers. The treaty suspension crossed the threshold of water weaponization. Each threshold, once crossed, becomes permanent. India has demonstrated that it will use water as a strategic tool. That demonstration cannot be un-demonstrated.

What the Indus Weaponization Reveals

Water weaponization reveals something fundamental about the trajectory of India-Pakistan relations that extends beyond water management or even strategic competition. It reveals that the architecture of bilateral restraint that was painstakingly constructed over decades, through treaties, confidence-building measures, back-channel communications, and tacit understandings, is being systematically dismantled. The Indus Waters Treaty was the most durable element of that architecture, the one agreement that both sides pointed to as evidence that coexistence, however hostile, was possible. Its suspension removes that evidence.

Asymmetry sits at the heart of this bilateral relationship. India is the upstream power. Pakistan is the downstream power. This geographic fact creates a structural vulnerability that no treaty, no matter how well-drafted, can eliminate. The treaty managed that vulnerability for sixty-five years by establishing rules that both sides followed. But the rules themselves depend on the willingness of the stronger party to follow them, and that willingness has now been demonstrated to be conditional. For Pakistan, this means that its most fundamental vulnerability, its dependency on water that originates in territory controlled by its adversary, cannot be mitigated through legal agreements alone.

Responses to this reality will shape the next phase of the bilateral relationship. Pakistan may seek to reduce its dependency on the Indus system through investments in water storage, desalination, or efficiency improvements, though the scale of investment required is immense and the timeline extends decades beyond the current crisis. Pakistan may seek international legal remedies, though the precedent for enforcing water rights against a nuclear-armed state that has suspended the governing treaty is virtually nonexistent. Pakistan may intensify its nuclear signaling, linking water security to its deterrent posture in ways that raise the risk of catastrophic escalation. Or Pakistan may seek a new framework for bilateral relations that addresses India’s terrorism concerns while restoring the water-sharing protections, though the political will for such negotiations appears absent on both sides.

What is clear is that the 2025 crisis has permanently altered the calculus of the Indus basin. The treaty that governed the basin’s waters for sixty-five years is no longer in force. The infrastructure that gives India physical control over Pakistan’s water supply continues to expand. The political dynamics that produced the 2025 suspension, specifically the linkage between terrorism and water, have not been resolved. And the humanitarian stakes, the survival of Pakistan’s agricultural economy and the food security of 230 million people, remain as high as they have ever been. The next chapter of the Indus Waters story will be written by water engineers, military planners, diplomats, and perhaps, if the worst scenarios materialize, by the populations that depend on the river for their survival.

For India’s strategic planners, water weaponization has proven its value as a coercive tool with relatively low cost and high impact. Unlike military action, which risks escalation to nuclear exchange, and unlike economic sanctions, which take months or years to produce visible effects, water restriction creates immediate, visible, and reversible pressure. New Delhi can calibrate the intensity by adjusting dam operations, escalate by extending restrictions to additional facilities, or de-escalate by simply reopening the gates. Reversibility is a critical feature because it allows India to apply pressure without permanently destroying the bilateral relationship, unlike military strikes, which produce irreversible casualties and infrastructure damage.

For Pakistan’s planners, the 2025 crisis has forced a fundamental reassessment of the country’s strategic vulnerability matrix. Before the treaty suspension, water was understood as a latent vulnerability, a theoretical risk that diplomacy and international law would mitigate. After 2025, it is an active one, a capability that India has demonstrated and can deploy at any time of its choosing. Addressing this vulnerability requires investment at a scale that Pakistan’s struggling economy may not be able to sustain, including massive dam construction for additional storage capacity, canal lining to reduce the forty percent of irrigation water lost to seepage, desalination plants for coastal cities, and efficiency improvements across the agricultural sector. Each of these measures requires years or decades of sustained investment and institutional reform, capabilities that have historically been in short supply in Pakistan’s governance landscape.

Regional powers are watching the precedent carefully. China, which controls the upper reaches of rivers flowing into Southeast Asia and India itself, has taken note of the international community’s muted response to the treaty suspension. Beijing’s own dam construction on the Brahmaputra, the Mekong, and the Salween gives it similar leverage over downstream states, and the establishment of a precedent that such leverage can be exercised in response to political grievances has implications that extend far beyond South Asia. Conversely, India itself is a downstream state on the Brahmaputra, which originates in Tibet, creating a potential vulnerability to precisely the same form of coercion that it has deployed against its western neighbor.

Middle Eastern observers have drawn connections between the Indus case and their own transboundary disputes. Egypt’s existential concern about Ethiopia’s Grand Renaissance Dam on the Blue Nile mirrors the downstream vulnerability that characterizes Islamabad’s position on the Indus. Turkish management of the Tigris and Euphrates has long caused friction with Iraq and Syria, and Ankara’s construction of the Ilisu Dam generated international condemnation that bears structural similarities to the criticism of India’s western-rivers infrastructure. In Central Asia, Uzbekistan and Turkmenistan depend on upstream flows from Tajikistan and Kyrgyzstan, creating analogous vulnerabilities that have produced repeated diplomatic crises. Each of these cases involves the same fundamental asymmetry between upstream control and downstream dependency that the Indus dispute embodies, and each region’s policymakers are studying the India-Pakistan precedent for lessons about how upstream powers use and downstream powers respond to hydrological leverage.

For scholars of international relations, the Indus case provides a laboratory for studying the intersection of environmental security, nuclear deterrence, and state-sponsored terrorism in ways that have no historical parallel. No previous case has combined all three variables in a single bilateral relationship. Israel’s water management disputes with Jordan and the Palestinian territories involve environmental security but not nuclear arsenals. The US-Soviet Cold War involved nuclear deterrence and state sponsorship of proxy warfare but not shared river basins. Only India and Pakistan present the full triad of shared water, shared nuclear risk, and active sponsorship of cross-border violence, making their dispute uniquely dangerous and uniquely instructive for the global management of transboundary resources.

Frequently Asked Questions

Q: What is the Indus Waters Treaty?

The Indus Waters Treaty is a water-sharing agreement signed on September 19, 1960, by India and Pakistan, brokered by the World Bank. The treaty divides the six major rivers of the Indus basin between the two countries, allocating the three eastern rivers (Ravi, Beas, and Sutlej) to India and the three western rivers (Indus, Jhelum, and Chenab) primarily to Pakistan. India retains limited rights to use the western rivers for non-consumptive purposes, including run-of-the-river hydroelectric power generation. The treaty survived three wars and multiple crises before India suspended it in April 2025 following the Pahalgam terrorist attack.

Q: How did India weaponize the Indus Waters Treaty in 2025?

India weaponized the treaty through a three-step process during the escalation following the Pahalgam attack. On April 23, 2025, the government declared the treaty suspended, citing national security concerns and Pakistan’s support for terrorism. On May 4, India closed the sluice gates of the Baglihar Dam on the Chenab River, physically reducing downstream flows. Simultaneously, India conducted reservoir flushing operations at the Salal and Baglihar projects and signaled preparations for similar restrictions at the Kishanganga Dam on the Neelum River. These actions demonstrated India’s physical capability and political willingness to control water flows to Pakistan.

Q: What is the Baglihar Dam and why does it matter?

The Baglihar Dam is a 900-megawatt run-of-the-river hydroelectric project on the Chenab River in the Ramban district of Jammu and Kashmir. The dam is a concrete gravity structure measuring 144.5 meters high and 363 meters long, with a reservoir capacity of approximately 475 million cubic meters. It was constructed in two phases, commissioned in 2008 and 2015. The dam matters because it gives India physical control over Chenab flows to Pakistan, allowing New Delhi to regulate the timing and volume of water releases downstream.

Q: What is the Kishanganga Hydroelectric Project?

The Kishanganga project is a 330-megawatt run-of-the-river facility that diverts water from the Kishanganga River, a Jhelum tributary known as the Neelum in Pakistan, through a 23-kilometer tunnel to a powerhouse in the Jhelum basin. Developed by the National Hydroelectric Power Corporation and commissioned in 2018, the project permanently reduces downstream flows into the Neelum Valley of Pakistan-occupied Kashmir, directly affecting Pakistan’s downstream Neelum-Jhelum Hydropower Plant.

Q: How dependent is Pakistan on the Indus River system?

Pakistan’s dependency on the Indus system is nearly absolute. Approximately ninety percent of the country’s agricultural production relies on water from the Indus Basin Irrigation System. Agriculture contributes about twenty-three percent of GDP and employs forty-two percent of the labor force. One-third of electricity generation comes from hydropower on Indus tributaries. Major cities including Karachi, Lahore, and Hyderabad depend on the system for drinking water. Pakistan’s water storage capacity is limited to roughly thirty days of supply, far below the recommended 1,000 days for its climate.

Q: Why did Pakistan call water restriction an act of war?

Pakistan considers water an existential issue because its entire agricultural economy, food security, and significant portions of its energy generation depend on the Indus system. The government declared that any attempt to stop or divert treaty-allocated water would constitute an act of war because such action would threaten the survival of the state’s population. This framing reflects a strategic doctrine that has treated water security as equivalent to territorial integrity since the 1948 water crisis that followed Partition.

Q: Can India legally suspend the Indus Waters Treaty?

The legality is contested. India argues suspension is justified under the doctrine of fundamental change of circumstances and the Vienna Convention on the Law of Treaties, claiming that Pakistan’s sponsorship of terrorism constitutes a material breach of the bilateral relationship that underlies the treaty. International water law scholars counter that obligations regarding transboundary rivers derive from customary international law, not just bilateral agreements, and cannot be suspended unilaterally regardless of other bilateral disputes. No international court has ruled on the specific question.

Q: Did the treaty suspension cause immediate harm to Pakistan?

The immediate physical impact was limited. The Baglihar gate closure reduced Chenab flows visibly in the short term, with exposed riverbed sections documented in photographs, but Pakistan’s Water and Power Development Authority maintained that downstream levels remained within seasonal norms. The treaty suspension’s primary impact was strategic rather than hydrological, demonstrating India’s capability and willingness to control flows while establishing a precedent that the treaty’s protections are conditional.

Q: What dams give India control over rivers flowing to Pakistan?

India controls flows through multiple facilities on the western rivers. The Baglihar Dam (900 MW) and Salal Dam (690 MW) are on the Chenab. The Kishanganga Dam (330 MW) and Uri project (480 MW) are on the Jhelum system. The Dul Hasti project (390 MW) is also on the Chenab. The under-construction Ratle plant (850 MW) will add further capacity on the Chenab. Together, these facilities give India the infrastructure to modulate Pakistan’s water supply across the two primary agricultural rivers.

Q: Has the Indus Waters Treaty been restored after the ceasefire?

As of the most current available information, the treaty remains in abeyance. The May 10, 2025, ceasefire that ended the active military conflict did not address the treaty’s status. India’s position is that restoration is conditional on Pakistani action against terrorism. Pakistan’s position is that the treaty is an independent obligation that cannot be linked to other issues. The institutional mechanisms created by the treaty, including the Permanent Indus Commission, remain suspended.

Q: What would happen to Pakistan if India permanently restricted water?

A permanent or sustained restriction of Indus flows would create cascading consequences for Pakistan. Agricultural production, which depends on canal irrigation from the Indus system, would decline sharply within weeks during the dry season, potentially causing crop failures across Punjab and Sindh. Food prices would increase dramatically, affecting the most vulnerable populations first. Hydropower generation would decline, compounding existing energy shortages. Urban water supplies in major cities would face severe pressure. The combined effects could trigger an economic crisis, food insecurity affecting tens of millions, and political instability.

Q: Is water weaponization a violation of international humanitarian law?

Legal status is unclear because no comparable precedent exists. International humanitarian law prohibits attacks on objects indispensable to the survival of civilian populations, a category that includes water supplies and irrigation infrastructure. However, treaty suspension and dam regulation operate in a gray zone between economic coercion and direct targeting. The Geneva Conventions and their Additional Protocols were drafted with military operations in mind, not the regulation of upstream water flows. The question of whether water weaponization constitutes a form of collective punishment prohibited under humanitarian law remains unresolved.

Q: How does the Indus dispute compare to other transboundary water conflicts?

Parallels exist with several global transboundary water conflicts but is unique in its combination of extreme downstream dependency, nuclear-armed adversaries, and active military hostility. Turkey’s control over the Tigris and Euphrates creates similar leverage over Syria and Iraq. Ethiopia’s Grand Renaissance Dam on the Nile threatens Egypt’s water supply. China’s dam construction on the upper Mekong affects six downstream countries. However, none of these disputes involve two nuclear-armed states with an active territorial conflict and a history of state-sponsored terrorism, making the India-Pakistan water dimension uniquely dangerous.

Q: Why did the World Bank refuse to intervene in 2025?

According to its own statement, its role was limited to that of a facilitator, and it would not engage in the political dimensions of the dispute. This represented a significant shift from the Bank’s previous engagement in treaty disputes, where it had appointed neutral experts and facilitated arbitration in the Baglihar, Kishanganga, and Ratle cases. The Bank’s decision reflected the political reality that the 2025 crisis extended well beyond water management into military conflict and nuclear escalation, territory where the Bank had neither the mandate nor the institutional capacity to operate.

Q: What is the Permanent Indus Commission?

Established under the Indus Waters Treaty, this bilateral body is composed of one commissioner from each country, tasked with managing the day-to-day operation of the agreement. The Commission is responsible for resolving disputes at the technical level, facilitating information exchange about engineering works, and ensuring compliance with the treaty’s provisions. Before the 2025 suspension, the Commission met regularly to discuss water management issues. Its operations are currently suspended alongside the treaty itself.

Q: Could Pakistan survive economically without the Indus treaty?

Pakistan’s survival without the treaty depends entirely on whether India chooses to exercise its physical control over the western rivers. If India maintains current flow patterns despite the treaty’s suspension, Pakistan’s water supply remains functionally unchanged. If India imposes sustained restrictions, Pakistan faces an existential agricultural and economic crisis within weeks to months, depending on the season and the severity of the restriction. Pakistan’s limited storage capacity, only thirty days, provides almost no buffer against sustained upstream action.

Q: What role did water play in the fourteen-day escalation?

Water weaponization was the thirteenth step in India’s fourteen-day escalation sequence between the Pahalgam attack and Operation Sindoor. The treaty suspension came on Day 2, the dam closure on approximately Day 13, and the missile strikes on Day 16. Water restriction served as a penultimate form of coercive pressure, demonstrating that India was willing to target Pakistan’s most fundamental vulnerability before resorting to military force. The sequencing positioned water weaponization as a final warning before kinetic action.

Q: What is the Neelum-Jhelum Hydropower Plant and how was it affected?

The Neelum-Jhelum Hydropower Plant is Pakistan’s largest hydropower facility in Pakistan-occupied Kashmir, with an installed capacity of 969 megawatts. The plant draws water from the Neelum River, the same river that India’s upstream Kishanganga project diverts. During the 2025 conflict, the plant was reportedly damaged, reducing its operational capacity. Combined with the upstream diversion at Kishanganga and the treaty suspension, the damage created a compounding water and energy crisis in PoK that illustrated the cascading vulnerabilities of Pakistan’s hydro infrastructure.

Q: Does India have enough infrastructure to fully cut off water to Pakistan?

India cannot fully cut off the Indus system’s flow to Pakistan because the rivers are too large and the geography too dispersed for complete control. The Indus itself passes through mountainous terrain in Ladakh where large-scale diversion is impractical. However, India has sufficient infrastructure on the Chenab and Jhelum to significantly reduce flows on these two rivers, which are Pakistan’s primary agricultural water sources. Complete cutoff is not necessary for strategic effect. Even a sustained partial reduction during the dry agricultural season would create severe consequences for Pakistan’s food production.

Q: What would it take to restore the Indus Waters Treaty?

Restoration would require political will on both sides that currently appears absent. India demands Pakistani action against terrorist organizations as a precondition. Pakistan insists the treaty is an independent obligation. A restored treaty would also need to address the trust deficit created by the 2025 suspension, potentially through enhanced monitoring, international guarantees, or modified dispute resolution mechanisms. Some analysts have suggested that a new framework, rather than restoration of the 1960 agreement, may be necessary to address both countries’ concerns. Others argue that any new negotiation would produce an agreement less favorable to Pakistan than the original treaty, making Islamabad reluctant to reopen the terms.

Q: How does water weaponization fit into India’s broader strategic doctrine?

Water weaponization adds a non-military dimension to India’s expanding coercive toolkit against Pakistan. It complements the diplomatic isolation achieved through the post-Pahalgam measures, the economic pressure applied through trade suspension, the military capability demonstrated through Operation Sindoor, and the covert pressure maintained through the targeted elimination campaign. Together, these instruments create a comprehensive pressure framework that targets Pakistan across every dimension of state power. The addition of water weaponization is particularly significant because it targets Pakistan’s most fundamental vulnerability, one that no amount of military capability can mitigate.