Indus Waters Treaty – India Rejects Hague Court of Arbitration Ruling

The Indus Waters Treaty (IWT), 1960 governs the sharing and use of the Indus river system between India and Pakistan. The latest dispute has brought issues of water security, hydropower development, treaty obligations and international jurisdiction into focus.

Context

1. On 31^st August 2026, the Court of Arbitration constituted under the IWT issued an award on the status of the treaty and an order on interim measures concerning the Ratle Hydroelectric Project.
2. The Court held that the IWT remains in force and does not permit India to unilaterally suspend its obligations under the treaty.
3. It also imposed interim restrictions on certain construction activities at the Ratle Hydroelectric Project pending the related technical process.
4. India rejected the ruling, maintaining that the Court of Arbitration was improperly constituted and has no jurisdiction over the matter.
5. The Permanent Court of Arbitration (PCA), The Hague, is serving as the administering institution, while the Court of Arbitration is the adjudicatory body.

About the Indus Waters Treaty

1. The IWT was signed in 1960 between India and Pakistan, with the World Bank playing a key role in its negotiation.
2. It divides the six major rivers of the Indus Basin into two groups:

1. The allocation does not completely prohibit the other country from using these rivers.
2. India has specified rights over the Western Rivers, including domestic use, limited irrigation and run-of-the-river hydropower generation, subject to treaty conditions.

Treaty-Based Dispute Resolution

The IWT provides different mechanisms for dealing with disputes:

1. Permanent Indus Commission: Facilitates regular communication, cooperation and implementation of the treaty.
2. Neutral Expert: Examines specified technical differences.
3. Court of Arbitration: Adjudicates specified legal disputes under the treaty.

The present controversy is partly linked to disagreement over the appropriate mechanism for dealing with issues concerning India’s hydroelectric projects on the Western Rivers.

India’s Abeyance Decision

1. On 23^rd  April 2025, following the Pahalgam terror attack, India announced that the IWT would remain in abeyance until Pakistan credibly and irrevocably ended its support for cross-border terrorism.
2. India also cited changes in security, demographic, technological and environmental conditions since the treaty was concluded.
3. The Court held that these grounds did not provide a legal basis for India’s unilateral suspension or termination of the treaty.

India’s Objections

India’s rejection of the proceedings of the Court of Arbitration constituted under the Indus Waters Treaty is based mainly on the following grounds:

1. Constitution of the Court: India argues that the Court was constituted in violation of the IWT’s dispute-resolution framework.
2. Jurisdiction: India does not recognise the Court’s jurisdiction and has not participated in its proceedings.
3. Parallel proceedings: India objects to arbitration proceeding alongside the Neutral Expert process concerning related technical issues.
4. Abeyance: India maintains its decision to place the treaty in abeyance and rejects the Court’s authority to determine the validity of that decision.

India has therefore rejected the Court’s pronouncements and maintains its position on the treaty’s abeyance.

Ratle and Kishenganga Hydroelectric Projects

1. Ratle Hydroelectric Project

• The Ratle Hydroelectric Project is located on the Chenab River in Jammu and Kashmir.
• Pakistan has raised objections to aspects of its design and operation under the IWT.
• The Court’s 31^st  August 2026 interim order restricted certain construction activities at the project and required India to provide information on its construction schedule.
• The restrictions are linked to the ongoing Neutral Expert process, with the final decision expected around July 2027.

2. Kishenganga Hydroelectric Project

• The Kishenganga Hydroelectric Project is located on the Kishenganga River, a tributary of the Jhelum.
• Pakistan has challenged aspects of the project’s design and operation.
• The dispute involves technical issues concerning pondage, dam design and project operation.

Significance

1. Water and Energy Security: The Indus Basin is crucial for agriculture and irrigation in Pakistan, while the Western Rivers are important for India’s hydropower generation and water-resource development.
2. National Security: India’s decision to place the IWT in abeyance has linked transboundary water cooperation with concerns over cross-border terrorism, giving the treaty a wider strategic dimension.
3. International Law: The dispute raises important questions concerning unilateral treaty suspension, treaty obligations and the jurisdiction of treaty-based dispute-resolution mechanisms.
4. India–Pakistan Relations: The disagreement adds another layer to already strained bilateral relations and may affect future cooperation over shared water resources.

Way Forward

1. Establish greater clarity on the jurisdiction and sequencing of the treaty’s dispute-resolution mechanisms.
2. Strengthen technical dialogue and data sharing concerning river flows and hydroelectric projects.
3. Preserve channels of institutional communication on water management despite wider political tensions.
4. Safeguard India’s legitimate water, energy and strategic interests while promoting predictable management of the shared river system.

Conclusion

The Indus Waters dispute is no longer limited to individual hydroelectric projects. It now involves wider questions of treaty interpretation, international jurisdiction, water security and strategic interests. A durable approach will require balancing India’s developmental and security concerns with the need for stable and predictable transboundary water governance.

 UPSC FAQs

Q1. What is the Indus Waters Treaty?
The Indus Waters Treaty, 1960 is a water-sharing agreement between India and Pakistan. It primarily allocates the Eastern Rivers to India and the Western Rivers to Pakistan while permitting specified uses by both countries.

Q2. Which rivers are classified as Eastern and Western Rivers under the IWT?
The Eastern Rivers are Ravi, Beas and Sutlej. The Western Rivers are Indus, Jhelum and Chenab.

Q3. What rights does India have over the Western Rivers?
India is permitted specified uses of the Western Rivers, including domestic use, limited irrigation and run-of-the-river hydropower generation, subject to treaty conditions.

Q4. What are the dispute-resolution mechanisms under the IWT?
The treaty provides for the Permanent Indus Commission, Neutral Expert and Court of Arbitration, depending on the nature of the dispute.

Q5. Why did India reject the 2026 Court of Arbitration ruling?
India maintains that the Court was improperly constituted and lacks jurisdiction. It has also objected to parallel proceedings with the Neutral Expert process and does not recognise the Court’s authority over its decision to place the treaty in abeyance.

Q6. What is the difference between a Neutral Expert and a Court of Arbitration?
A Neutral Expert deals with specified technical differences, whereas a Court of Arbitration adjudicates specified legal disputes under the IWT.

Q7. Why is the Ratle Hydroelectric Project important?
Ratle is a hydropower project on the Chenab River, one of the Western Rivers. Its design and operation are part of the broader India–Pakistan dispute over the permissible use of Western River waters under the IWT.