Present an account of the Indus Water Treaty and examine its ecological, economic and political implications in the context of changing bilateral relations.
Approach · directive: “present an account / examine”
What it asks · Describe the 1960 Treaty (parties, division of rivers, machinery) and then analyse what it means ecologically, economically and politically as India-Pakistan ties change.
The question has 4 parts — answer each
- Present an account of the Indus Waters Treaty: parties, division of rivers, permitted uses, machinery
- Examine its ecological implications
- Examine its economic implications
- Examine its political implications in the context of changing bilateral relations
Open with · The Indus Waters Treaty (1960) is one of the world's longest-surviving water agreements, and it is now tested by climate change and strained relations.
Cover
- Account: signed at Karachi on 19 September 1960 with World Bank help; it divides the six rivers of the Indus system between India and Pakistan.
- Allocation: eastern rivers (Ravi, Beas, Sutlej) to India; western rivers (Indus, Jhelum, Chenab) to Pakistan, with India allowed run-of-river hydropower and limited storage and irrigation.
- Machinery: the Permanent Indus Commission, and a stepwise dispute process through the Neutral Expert or Court of Arbitration, as in the Kishenganga case.
- Ecological: dams and diversions alter flows and sediment, and glacier melt and changing monsoon patterns strain fixed allocations, so environmental flows matter for the basin.
- Economic: Pakistan's agriculture depends heavily on the Indus system; India wants hydropower and irrigation on the western rivers, where storage limits keep its use small.
- Political: the Treaty survived wars, but trust has eroded; India reviewed its position after Uri (2016), and unilateral moves risk legal disputes and regional instability.
Close with · India should use its full entitlements under the Treaty, keep the dispute mechanism working and pair it with basin-wide cooperation.
Add value (verified)
- Since then: after the Pahalgam attack of April 2025, the Cabinet Committee on Security placed the Treaty in abeyance, conditioning its revival on Pakistan ending support for cross-border terrorism. Press Information Bureau, press note on Operation Sindoor and India's response to the Pahalgam attack, 12 May 2025 ↗“The Indus Waters Treaty of 1960 will be held in abeyance with immediate effect, until Pakistan credibly and irrevocably abjures its support for cross-border terrorism.”
Question: UPSC's CS (Main) 2016, GS Paper I — paper ↗. Approach: Minimalist IAS, checked 30 Sept 2026 (how we verify) — UPSC publishes no model answers. ·
Model answer · 298 words (UPSC limit 200) · Minimalist IAS
Signed at Karachi on 19 September 1960 with the World Bank as broker, the Indus Waters Treaty has outlasted three wars and is now tested by climate change and a sharp fall in India-Pakistan trust.
The Treaty in brief
- Division: the three eastern rivers (Ravi, Beas, Sutlej) to India for unrestricted use; the three western rivers (Indus, Jhelum, Chenab) to Pakistan, with India retaining run-of-river hydropower, limited storage and specified irrigation on them.
- Machinery: a Permanent Indus Commission that exchanges data; disputes go stepwise to a Neutral Expert (Baglihar, 2007) or a Court of Arbitration (Kishenganga, 2013).
Ecological implications
- Fixed allocations ignore a changing basin: glacier retreat, a shifting monsoon and rising demand alter flows, yet the Treaty provides no environmental flow or joint basin management.
- Dams and diversions change sediment and flow regimes; the Kishenganga award made India maintain a minimum downstream flow, an early recognition of ecology.
Economic implications
- Pakistan's irrigated agriculture depends heavily on the western rivers, so every Indian project on them is read as a threat.
- India uses only part of its entitlement: storage limits and slow project execution keep hydropower and irrigation in Jammu and Kashmir below what the Treaty allows.
Political implications
- The Treaty survived 1965, 1971 and Kargil, a rare example of cooperation, yet each Indian project (Baglihar, Kishenganga) has been contested at length.
- After the Uri attack (September 2016) India reviewed the Treaty's working, with calls to use its full entitlement and speed up projects (since then, in April 2025, after the Pahalgam attack, India placed the Treaty in abeyance until Pakistan credibly ends support for cross-border terrorism).
India's best course is to use its full entitlements, keep the Commission and the dispute mechanism working, and press for basin-wide data sharing, so that the Treaty adapts rather than breaks.
Written by Minimalist IAS from facts checked at source (how we verify) — a little fuller than exam length, so every part of the question is covered; in the hall, keep the structure and trim the detail. UPSC publishes no model answers: compare your structure and coverage with this, then write your own.