UPSC Notes

Indus Waters Treaty (IWT)

PYQs

4

Articles

1

Momentum

13

Phase IFoundation

Background

Overview

The IWT is a landmark treaty in India-Pakistan relations, often tested for its historical context, provisions, and its role in bilateral diplomacy, especially in the context of cross-border terrorism and water security.

The Indus Waters Treaty (IWT) is a water-distribution treaty between India and Pakistan, brokered by the World Bank, that governs the sharing of the waters of the Indus River System. Signed in 1960, it allocates the eastern rivers (Ravi, Beas, Sutlej) to India and the western rivers (Indus, Jhelum, Chenab) to Pakistan, with provisions for limited Indian use of western river waters for non-consumptive purposes.

Phase IIStatic core

Facts & tables

Key facts

Signed

1960, between India and Pakistan.

Mediator

World Bank.

River Allocation

Eastern rivers (Ravi, Beas, Sutlej) to India; Western rivers (Indus, Jhelum, Chenab) to Pakistan.

Dispute Resolution

Provides a three-step mechanism for resolving disputes.

Reference table

Indus Waters Treaty River Allocation

CategoryRivers
Eastern Rivers (India)Ravi, Beas, Sutlej
Western Rivers (Pakistan)Indus, Jhelum, Chenab

Reference table

Static syllabus anchors

TypeReference
Conceptual areaInternational Relations
Conceptual areaBilateral Relations (India-Pakistan)

Reference table

Institutions & roles

BodyRole
World BankMediator
Ministry of External Affairs (India)Negotiates
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Factual recall

Prelims angle: Multi-statement analysis

Quick revision

  • IWT signed in 1960, mediated by World Bank.
  • Allocates eastern rivers to India, western to Pakistan.
  • India has put IWT in 'abeyance' due to terrorism.
  • Crucial for India-Pakistan relations and water security.
  • Includes a three-step dispute resolution mechanism.

Elimination traps

Body vs treatyDistinguish between the treaty itself and the Permanent Indus Commission established under it.

Treaty = agreement between states; body = institution.

High-confidence PYQs

Topic timeline

International RelationsBilateral Relations (India-Pakistan)

International waterways must remain safe and unimpeded: S. Jaishankar

24 Jul 2026 · The Indus Waters Treaty (IWT) is a 1960 water-sharing agreement between India and Pakistan, brokered by the World Bank, allocating eastern rivers to India and western rivers to Pakistan. India has placed the treaty in 'abeyance' in response to cross-border terrorism, highlighting its sensitivity in bilateral relations.

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Practice writing on this topic

UPSC has asked 4 linked questions on Indus Waters Treaty (IWT) in Mains. Write an answer to one — and get it evaluated.