What is Indus Water Treaty (IWT)? is a key topic under International Relations for UPSC Civil Services Examination. Key points include: Signed in 1960, brokered by the World Bank, between India and Pakistan.. Allocates Eastern Rivers (Ravi, Beas, Sutlej) to India and Western Rivers (Indus, Chenab, Jhelum) to Pakistan.. India can use Western Rivers for non-consumptive purposes like run-of-the-river hydropower.. Understanding this topic is essential for both UPSC Prelims and Mains preparation.
What is Indus Water Treaty (IWT)? is a Medium-level topic in UPSC International Relations. It is tested in both Prelims (factual MCQs) and Mains (analytical answer writing). Previous year UPSC questions have frequently covered aspects of What is Indus Water Treaty (IWT)?, making it essential for comprehensive IAS preparation.
To prepare What is Indus Water Treaty (IWT)? for UPSC: (1) Study the comprehensive notes covering all key concepts on Vaidra. (2) Practice previous year questions on this topic. (3) Connect it with current affairs using daily updates. (4) Revise using key takeaways and mind maps available for International Relations. (5) Write practice answers linking What is Indus Water Treaty (IWT)? to related GS Paper topics.

The Indus Waters Treaty (IWT) is a landmark agreement between India and Pakistan concerning the sharing of waters from the Indus River System. It is one of the most enduring water-sharing agreements globally.
Signed On: September 19, 1960
Brokered By: The World Bank
Purpose: To establish a mechanism for cooperation and information exchange regarding the use of the Indus system's waters and its tributaries.
The IWT meticulously outlines how the waters from the six rivers of the Indus River System are to be shared between the two nations. This division aims to ensure equitable access while acknowledging historical usage patterns.
India retains certain non-consumptive agricultural and domestic uses on the Western Rivers. This allocation meant that approximately 80% of the water share went to Pakistan, with India retaining 20% for its use.
A crucial component of the Indus Waters Treaty is the establishment of the Permanent Indus Commission. This body is mandated to meet annually to discuss any issues related to the treaty's implementation and data exchange.
Mandate: Annual meetings between India and Pakistan to resolve 'questions' and exchange information on river flows and projects.
The IWT incorporates a robust, three-step dispute resolution mechanism designed to address disagreements systematically and prevent escalation.
Several projects are subject to inspection under the IWT to ensure compliance with its provisions, particularly concerning the use of Western Rivers by India.


Pakistan Warns India Over Chenab River Projects, Citing Violation of Indus Water Treaty
4 Jun 2026
Pakistan ने India को चेतावनी दी, Chenab River परियोजनाओं को लेकर, Indus Water Treaty के उल्लंघन का हवाला देते हुए
4 Jun 2026
India Rejects Arbitration Award on Indus Waters Treaty – Implications for IWT and River Management
28 May 2026