Indus Waters Treaty: Why the 64-Year-Old Agreement Is Now Under Severe Strain

July 10, 2026 4 min read

The Indus Waters Treaty, one of the world's oldest and most durable water-sharing agreements, is facing its most serious challenge in decades. Negotiations between India and Pakistan over the interpretation of key provisions have broken down, leaving the future of water-sharing arrangements for hundreds of millions of people uncertain. The dispute centres on hydroelectric projects that Pakistan claims violate the 1960 agreement, while India insists its projects comply with treaty obligations.

A Cold War Accord That Survived Multiple Wars

The treaty was signed in Karachi on September 19, 1960, brokered by the World Bank after seven years of negotiations. It divides the six rivers of the Indus basin between the two nations, with India controlling the eastern rivers—Ravi, Beas, and Sutlej—while Pakistan receives the western rivers—Indus, Jhelum, and Chenab. The arrangement has survived two full-scale wars between the neighbours and dozens of military standoffs, earning a reputation as a model of transboundary water management.

For decades, both countries operated within the treaty's framework, referring disputes to the World Bank-appointed Neutral Expert or, in more serious cases, to the Court of Arbitration. These mechanisms worked adequately when tensions were lower. That is no longer the case.

Where the Current Tensions Began

The strain on the treaty intensified after India fast-tracked several hydroelectric projects on the western rivers in the early 2010s. Pakistan lodged formal objections, arguing that India's run-of-river projects reduced water flow downstream. India countered that the design of its projects—particularly the Baglihar Dam on the Chenab and the Kishenganga project on the Jhelum—fell within permitted parameters under the treaty.

The disagreement spiralled into a protracted legal battle. In 2021, the Neutral Expert appointed by the World Bank ruled on the Kishenganga dispute, finding partially in favour of Pakistan. India rejected the ruling, calling it flawed and partial. Pakistan then invoked provisions allowing the matter to escalate to the Court of Arbitration, a move India described as premature and legally untenable.

The Mechanism Is Breaking Down

What makes the current situation different from past disputes is the breakdown in consensus on how to resolve disagreements. The treaty requires both parties to agree on whether an issue should go to the Neutral Expert or the Court of Arbitration. India now insists that certain matters fall under the Neutral Expert's jurisdiction exclusively, while Pakistan demands judicial arbitration for what it calls substantive violations.

The World Bank, which has served as guarantor and facilitator since the treaty's signing, finds itself caught between its two largest clients in South Asia. A spokesperson for the institution acknowledged that the parallel invocation of different dispute resolution mechanisms created an unprecedented situation. The bank has suspended further appointments while both countries work out which pathway applies.

The Ranbir Canal Issue

One flashpoint involves the Ranbir Canal, a critical irrigation channel in Jammu and Kashmir fed by the Chenab River. Pakistan has raised concerns about reduced flows caused by upstream projects, while India has pointed to maintenance obligations that Pakistan has allegedly neglected. Local farmers on both sides of the border have reported declining crop yields, though attribution to specific causes remains disputed.

Impact on Communities Along the Rivers

For villages along the Chenab and Jhelum, the treaty's fragility is not an abstract political concern. Punjab province in Pakistan relies heavily on Chenab water for irrigation during the Rabi cropping season from October to March. Indian construction activity on the river's upper reaches directly affects water availability for districts in Pakistani-administered Azad Kashmir.

Indian farmers in Jammu and Kashmir face their own anxieties. The region's power infrastructure depends partly on hydroelectric generation from projects now caught in legal limbo. A prolonged halt to construction could delay electricity access for remote communities that remain off the grid.

The uncertainty extends beyond farming. Urban centres in both countries draw drinking water from the Indus system. Karachi, Pakistan's largest city with a population exceeding 16 million, depends on Indus inflows for municipal supply. Any sustained reduction would compound the city's chronic water shortages.

International Law and Sovereignty Claims

The treaty's Article IX contains provisions for amendment, but amendments require mutual written agreement—a near impossibility given current political temperatures. Legal scholars have debated whether either side could unilaterally withdraw, with most concluding that the treaty's termination clauses are ambiguous and have never been tested.

The Centre for Strategic and International Studies published an analysis noting that water treaties rarely collapse overnight. They erode gradually through non-compliance, competing interpretations, and the failure of enforcement mechanisms. The Indus Waters Treaty may be entering that erosion phase.

What Comes Next

Both governments have maintained diplomatic channels, though official statements have grown sharper in tone. India has called for direct talks under the treaty's provisions, while Pakistan insists on third-party mediation. Neither side has signalled willingness to compromise on core positions.

The next formal review under the treaty's Permanent Commission is scheduled for early next year. That meeting will determine whether both countries can agree on a procedural framework for pending disputes or whether the treaty effectively enters a frozen state with no functioning mechanism for resolving conflicts.

What to watch: Whether India and Pakistan announce a joint framework before the Permanent Commission meeting. If they cannot agree, the treaty's dispute resolution architecture may collapse entirely, leaving water-sharing to the mercy of political relations—something the treaty was explicitly designed to prevent.