Indus Waters Treaty
The Permanent Court of Arbitration (PCA) at The Hague has ruled that the Indus Waters Treaty (IWT), 1960 between India and Pakistan continues to remain fully in force and that India is still bound by its treaty obligations.
India has rejected the ruling, arguing that the Court of Arbitration itself was constituted contrary to the treaty framework and therefore has no jurisdiction over India. The dispute has sharpened tensions between the two countries over transboundary water sharing, hydroelectric projects and the interpretation of the IWT.
What is the Indus Waters Treaty?
The Indus Waters Treaty was signed in 1960 between India and Pakistan with the World Bank playing a facilitating role.
The treaty divides the six rivers of the Indus system into two groups:
- Eastern Rivers – Ravi, Beas and Sutlej: Primarily allocated to India.
- Western Rivers – Indus, Jhelum and Chenab: Primarily allocated to Pakistan, while India retains limited rights for domestic use, irrigation and run-of-the-river hydropower.
The treaty also provides institutional mechanisms for dispute resolution through:
- Permanent Indus Commission
- Neutral Expert
- Court of Arbitration
The applicable mechanism depends on the nature of the dispute.
What Did the Hague Court Rule?
The Court issued important decisions on 31 August 2026 concerning the status of the treaty and India’s hydroelectric projects.
Treaty Remains in Force
India had announced on 23 April 2025, after the Pahalgam terror attack, that the treaty would remain in “abeyance” until Pakistan ended support for cross-border terrorism in a credible and irreversible manner.
The Court held that:
- The IWT does not permit unilateral suspension or termination.
- The term “abeyance” cannot legally suspend treaty obligations.
- The treaty remains binding unless both countries mutually agree to alter or terminate it.
The Court also held that arguments based on terrorism, sovereignty, technological change, climate change, demographic change, armed conflict or material breach did not justify unilateral suspension under the treaty framework.
Ratle Hydroelectric Project and Interim Measures
The Court also issued interim directions regarding the Ratle Hydroelectric Project on the Chenab River.
India was asked to temporarily avoid concreting parts of the dam wall and power-intake structure beyond specified levels and to report changes in the construction schedule.
These restrictions are expected to continue until 90 days after the Neutral Expert delivers a final decision, which is expected around July 2027.
Why Has India Rejected the Court’s Decision?
India has consistently refused to participate in the Court of Arbitration proceedings.
New Delhi argues that:
- The Court was constituted by the World Bank in violation of the IWT.
- Pakistan triggered arbitration while related technical questions were already before a Neutral Expert.
- The treaty does not permit parallel dispute-settlement proceedings on the same issues.
- Therefore, the Court lacks jurisdiction over India.
India has consequently described the Court’s rulings as “null and void” and maintained that its decision to keep the treaty in abeyance remains effective.
The Ratle–Kishenganga Dispute
Pakistan has challenged certain design features of India’s Ratle and Kishenganga hydroelectric projects, arguing that they violate restrictions governing India’s use of the Western Rivers.
The disputes involve technical issues such as:
- Reservoir storage
- Pondage
- Dam design
- Water-release mechanisms
- Operational parameters
India supports the Neutral Expert mechanism for examining such technical questions and considers it the treaty-compliant route.
Strategic Importance of the Indus System
Water Security for Pakistan
Pakistan depends heavily on the Indus river system for:
- Irrigation
- Agriculture
- Food production
- Domestic water supply
Any change in India’s approach to the treaty therefore carries significant economic and strategic implications for Pakistan.
India’s Security Argument
India has increasingly linked bilateral agreements with Pakistan to the issue of cross-border terrorism.
New Delhi has argued that a treaty negotiated in the conditions of the 1950s should be reconsidered in light of changed security, technological, climatic and demographic realities.
International Law and Sovereignty Debate
The dispute raises a wider question about the relationship between international treaty obligations and sovereign decision-making.
The PCA has interpreted the treaty as continuing to bind both parties. India, however, disputes the tribunal’s very authority to make such a determination.
Thus, the controversy is not only about water allocation but also about:
- Jurisdiction
- Treaty interpretation
- Validity of dispute-settlement mechanisms
- Sovereign rights of States
What Lies Ahead?
The ruling is unlikely to immediately resolve the dispute because India does not recognise the Court’s jurisdiction.
Future developments may include:
- India continuing with its “abeyance” position.
- Pakistan seeking wider international support.
- Continued proceedings before the Neutral Expert.
- Further disputes over hydroelectric projects on the Western Rivers.
- Possible future negotiations on reforming or restructuring the IWT.
Conclusion
The latest Indus Waters Treaty dispute reflects the growing intersection of water security, national security and international law in India–Pakistan relations.
While the Hague Court has declared the treaty fully operational, India’s rejection of the tribunal means the legal and political contest is likely to continue. The future of the IWT will therefore depend not only on treaty interpretation, but also on broader bilateral relations, security concerns and the ability of both countries to negotiate a workable framework for transboundary water governance.
FAQs: Indus Waters Treaty
What is the Indus Waters Treaty?
The Indus Waters Treaty, signed in 1960 between India and Pakistan, regulates the sharing and use of the six rivers of the Indus river system.
Why has India rejected the Hague Court ruling?
India argues that the Court of Arbitration was constituted contrary to the treaty framework and that it therefore lacks jurisdiction over India.
Which rivers are allocated to Pakistan under the treaty?
The Indus, Jhelum and Chenab are classified as Western Rivers and are primarily allocated to Pakistan, while India has certain permitted uses.
What is the dispute over the Ratle and Kishenganga projects?
Pakistan has raised objections to certain design and operational features of India’s hydroelectric projects on the Western Rivers, including issues related to storage, pondage and water release.
What could happen to the Indus Waters Treaty dispute next?
The dispute may continue through Neutral Expert proceedings, further disagreements over hydroelectric projects and diplomatic negotiations, as India does not recognise the Court of Arbitration’s jurisdiction.
