A dated record of the Indus Waters Treaty, from the 1960 signing to the April 2025 abeyance and after. Updated as the record moves.
This page exists because the Treaty is no longer a settled document. Its status changed in April 2025 and continues to move, and most accounts of it stop at the signing. What follows is the sequence, with each entry kept to what is on the record rather than what is argued about it. Where a claim is contested, it is marked as contested.
Two things are frequently conflated and are worth separating. Abeyance is not termination: Article XII keeps the Treaty in force until both governments agree otherwise, and India has not purported to end it. And the case for revisiting the Treaty’s technical terms — a 1960 allocation drawn with no climate contingency, for a basin now facing glacial retreat and altered seasonal flows — stands independently of the security question, on hydrology alone.
Some of what is said about the Treaty is argument rather than record, and this page marks the difference. Whether India’s abeyance is a lawful countermeasure or a breach is contested — India grounds it in material breach and changed circumstances under the Vienna Convention and in the law of state responsibility; Pakistan disputes that reading. Whether the Court of Arbitration or the Neutral Expert is the proper forum is contested and is itself the subject of proceedings. And whether Pakistan’s water distress is caused upstream or by six decades of under-investment in storage and irrigation efficiency is argued both ways, though the investment record is documented.
The Indus Waters Treaty, Explained — the background report covering what the Treaty says, how its machinery works, and the legal frame around the abeyance: www.tiesverse.com/research/the-indus-waters-treaty-explained
The Dialogue on the Indus Waters Treaty 2026, convened by Tiesverse Foundation at Bharat Mandapam, New Delhi on 19 September 2026, with the full agenda, registration and partnership details: iwtdialogue.tiesverse.com
On 19 September 1960 in Karachi, after nine years of World Bank-brokered negotiation between India and Pakistan.
No. India placed the Treaty in abeyance in April 2025 following the Pahalgam terror attack. Abeyance is a suspension of operation, not termination — Article XII provides that the Treaty remains in force until both governments agree otherwise.
The Pahalgam terror attack killed 26 civilians, and India placed the Indus Waters Treaty in abeyance — the first such step in the Treaty’s history, which had previously held through the wars of 1965, 1971 and 1999.
Once. The April 2025 abeyance is the only suspension in the Treaty’s history since it was signed in 1960.
This timeline is updated as the record moves. The Dialogue on the Indus Waters Treaty 2026 at Bharat Mandapam, New Delhi on 19 September 2026 will publish a legal-policy white paper summarising the sourced evidence: iwtdialogue.tiesverse.com
Tiesverse — India's youth-led research, media and technology organisation.