Arbitration tribunal orders India to uphold 1960 Indus water treaty with Pakistan
The Permanent Court of Arbitration in The Hague ruled unanimously that the 1960 Indus Waters Treaty remains binding, barring India from specific dam construction in Kashmir.
Tribunal ruling in The Hague
On 31 August 2026, the Permanent Court of Arbitration in The Hague ruled that India must comply with its obligations under the 1960 Indus Waters Treaty with Pakistan. The international tribunal found unanimously that none of the legal grounds submitted by New Delhi justified suspending or withdrawing from the water-sharing agreement. The ruling confirmed that the bilateral pact has neither been denounced nor legally suspended, affirming that it remains fully in force. India had sought to halt its participation in the agreement following cross-border disputes, while simultaneously pursuing two hydroelectric developments in the Kashmir region. The court stated that India remains bound by all treaty provisions governing the use, design, and operation of water infrastructure on the shared river network.
Construction curbs and reporting requirements
Alongside the general validity finding, the court issued interim orders restricting Indian engineering activities on western rivers that feed into Pakistan. The tribunal prohibited India from proceeding with specific dam wall concreting works intended for a hydropower installation in the disputed Kashmir territory. Furthermore, the judges instructed New Delhi to provide regular updates regarding any alterations to its building schedule. These operational disclosures must be submitted to the court, an appointed neutral expert, and the Pakistani government. The interim restrictions are set to remain active until the neutral expert delivers a final determination, which is scheduled for 2027.
- India and Pakistan sign the Indus Waters Treaty governing shared river systems
- India moves to suspend treaty participation following an attack in Kashmir
- The Permanent Court of Arbitration rules the treaty is binding and halts dam work
- A neutral expert is scheduled to deliver a final ruling on the dispute
Opposing reactions in New Delhi and Islamabad
India rejected the ruling immediately, maintaining that it does not recognize the jurisdiction of the tribunal. The Indian Ministry of External Affairs reaffirmed that its stance on holding the agreement in abeyance had not changed.
India categorically rejects its so-called award, just as it has firmly rejected all prior pronouncements by this illegally constituted body.
Pakistan welcomed the outcome of the proceedings and the interim curbs imposed on Indian construction. Deputy Prime Minister and Foreign Minister Ishaq Dar stated on social media that the finding confirmed that international treaties cannot be suspended through unilateral action. Dar added that Islamabad remained dedicated to protecting its rights and water access under the pact.
Background and tensions over the Indus basin
The Indus Waters Treaty, signed in 1960, establishes the allocation and management of six rivers that originate in Indian-controlled Kashmir before flowing downstream into Pakistan. Hundreds of millions of people across the Indus basin depend on these waterways for irrigation, domestic consumption, and power generation. The shared water network traverses the contested demarcation lines of Muslim-majority Kashmir, a Himalayan territory claimed in full by both nations. Friction intensified in May 2025 when New Delhi moved to suspend its treaty participation following a fatal attack on tourists in Indian Kashmir, an incident India attributed to Islamabad despite Pakistani denials. Indian Water Minister C.R. Patil noted earlier in the year that authorities would work to ensure not a single drop of water flows into Pakistan, prompting Pakistani officials to warn that altering cross-border river flows would represent an act of war.
