What is the common examiner trap about Intl. Relations in UPSC exams?

Students may confuse the Indus Water Treaty with the Indus Waters Treaty (same) or mix up the allocation of rivers. The trap: The article states the treaty apportions a 'major portion of water to Pakistan from the western rivers', but some might think it gives more to India. Also, the IWT is not 'equitable' in the ERU sense; it is partition-based. The examiner may ask whether the IWT is based on ERU (no, it is based on partition).

What should UPSC aspirants remember about Intl. Relations for Prelims?

1. Target this Data: Indus Water Treaty signed in 1960; suspended by India after Pahalgam terror attack. 2. Target this Legal Point: Equitable and Reasonable Utilisation (ERU) is codified in Helsinki Rules 1966, UN Watercourses Convention 1997, and Berlin Rules 2004. 3. Target this Example: US-Mexico Treaty of 1944 includes a provision of 75 million acre foot minimum flow over 10 consecutive years at Lee Ferry.

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News 9 of 28

Revise IWT: Codify Equitable Utilisation (ERU) Principles, Include Climate Change Flexibility

Q: Which international convention, mentioned in the article, requires signatories to conserve wetlands, especially those that are transboundary in nature?

Ramsar Convention on Wetlands (1971), The article explicitly states that both India and Pakistan are signatories to the Ramsar Convention on Wetlands (1971), which aims to conserve and use wetlands, especially transboundary ones like the Rann of Kutch.

Q: Consider the following statements regarding the Indus Water Treaty (IWT) as discussed in the article: 1. The IWT was signed in 1960. 2. The treaty apportions a major portion of water from the western rivers to India. 3. The US-Mexico Treaty of 1944 includes a provision that prohibits depletion below 75 million acre foot over any consecutive 10-year period. Which of the statements given above is/are correct?

Both 1 and 3, Statement 1 is correct: the IWT was signed in 1960. Statement 2 is incorrect: the article says the treaty apportions a major portion of water to Pakistan from the western rivers, not to India. Statement 3 is correct: the article mentions the US-Mexico Treaty of 1944 includes a provision of 75 million acre foot over 10 years. Hence option C is correct.

Q: According to the article, what is the specific minimum flow requirement at Lee Ferry under the US-Mexico Treaty of 1944?

75 million acre foot over any consecutive 10-year period, The article states: 'The provision prohibits the upper division states (in the U.S.) from causing the Colorado River flow at Lee Ferry to be depleted below 75 million acre foot during any consecutive 10-year period.' Hence option B is correct.

Q: What is the primary reason the article argues for revising the Indus Water Treaty?

To incorporate climate change flexibility and codify equitable and reasonable utilisation (ERU) principles, The article repeatedly argues that the IWT should be revised to move beyond partition and adopt ERU principles, which offer flexibility to incorporate changing conditions related to climate change. This is a key theme throughout the piece.

Intl. Relations Environment PolityHIGH

Target:UPSC GS-IIMPSCTeachingSSC GAPrelims HighMains HighStatic GK Link

25 Aug 2026

~2 min

Source: The Hindu

Key Data:Helsinki Rules 1966UN Watercourses Convention 1997Berlin Rules 2004Ramsar Convention on Wetlands 1971Convention on Biological Diversity 199275 million acre foot

Bodies:Indian Society of International LawIndian Parliament Standing Committee on Water ResourcesMekong River CommissionRamsar ConventionConvention on Biological Diversity

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~2 min · Quick mode

What This Article Covers

1.The Indus Water Treaty (IWT) is in abeyance; the article advocates revising it to codify equitable and reasonable utilisation (ERU) principles.

2.ERU is rooted in Helsinki Rules (1966), UN Watercourses Convention (1997), and Berlin Rules (2004), offering flexibility to adapt to climate change.

3.Examples from the Nile Cooperation Framework, Mekong River Commission, and US-Mexico Treaty (1944) show how joint data sharing and mutual benefits can inform IWT revision.

The Big Picture

Prelims · HighMains · High

The Indus Water Treaty (1960) is currently in abeyance after India suspended it. This opinion piece argues for a revision that moves beyond the original partition-based allocation to a shared management approach grounded in equitable and reasonable utilisation (ERU), incorporating climate change flexibility. The article draws on examples from the Nile, Mekong, and US-Mexico treaties, and highlights international obligations under Ramsar and CBD. For exams, this is crucial for understanding transboundary water governance, India-Pakistan relations, and the legal principles of international water law.

Exam Lens

Quick Exam Facts From News

Treaty NameIndus Water Treaty (IWT), 1960

Current StatusIn abeyance (suspended by India after Pahalgam attack)

Key Principle AdvocatedEquitable and Reasonable Utilisation (ERU)

Legal Instruments Citing ERUHelsinki Rules 1966, UN Watercourses Convention 1997, Berlin Rules 2004

Other Treaties ReferencedCooperative Framework Agreement on Nile, Mekong River Commission, U.S.-Mexico Treaty 1944

International ObligationsRamsar Convention on Wetlands (1971), Convention on Biological Diversity (1992)

Specific Data Point (US-Mexico)75 million acre foot minimum flow over any 10 consecutive years at Lee Ferry

1-Minute Revision

›Treaty Name: Indus Water Treaty (IWT), 1960
›Current Status: In abeyance (suspended by India after Pahalgam attack)
›Target this Data: Indus Water Treaty signed in 1960; suspended by India after Pahalgam terror attack.
›Target this Legal Point: Equitable and Reasonable Utilisation (ERU) is codified in Helsinki Rules 1966, UN Watercourses Convention 1997, and Berlin Rules 2004.
›Target this Example: US-Mexico Treaty of 1944 includes a provision of 75 million acre foot minimum flow over 10 consecutive years at Lee Ferry.

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News Snapshot

💧

IWT Suspended

The Indus Water Treaty is in abeyance after India suspended it following the Pahalgam terror attack, but debate continues on its future.

⚖️

Shift to Equitable Utilisation

The article urges moving from a partition-based allocation to a shared management approach governed by the ERU principle, which can adapt to climate change.

🌍

Global Precedents

Examples from the Nile, Mekong, and Colorado River treaties show how mutual benefits and data sharing can be incorporated into water-sharing agreements.

Detailed Analysis & Strategic Depth

Context / Background

The Indus Water Treaty (IWT), 1960, is currently in abeyance after India suspended it. The treaty allocated the western rivers (Indus, Jhelum, Chenab) largely to Pakistan and the eastern rivers (Ravi, Beas, Sutlej) to India. The article highlights that this partition-based approach fails to address contemporary challenges like climate change, which affects water quality and quantity.

Core Analysis: Limitations of the IWT

The IWT lacks a shared management framework governed by equitable and reasonable utilisation (ERU). Instead, it is a rigid partition that does not account for changing hydrological realities. Pakistan's need for reliable water supply (especially for agriculture and flood management) and India's desire to develop hydropower in Kashmir are not reconciled. The ERU principle, as codified in the Helsinki Rules (1966), UN Watercourses Convention (1997), and Berlin Rules (2004), offers flexibility to consider all relevant circumstances.

International Examples and Lessons

The article cites the Cooperative Framework Agreement on the Nile (Article 4(5)), which requires states to review water utilisation in light of substantial changes. The Mekong River Commission's data sharing procedures create a formal framework for basin-wide decision-making. The U.S.-Mexico Treaty of 1944 includes a provision (Article III) prohibiting depletion below 75 million acre foot over any 10-year period, demonstrating flexibility to respond to annual hydrological variability.

Other International Legal Obligations

Both India and Pakistan are signatories to the Ramsar Convention on Wetlands (1971) and the Convention on Biological Diversity (1992). Updating the IWT could help meet obligations regarding transboundary wetlands (e.g., Rann of Kutch) and biodiversity conservation in the Indus basin. The Indian Parliament Standing Committee on Water Resources has noted the absence of a cohesive national framework for managing shared rivers, implicitly supporting the need for reform.

Future Outlook / Way Forward

The article argues that cooperation is possible when the net benefits of cooperation outweigh non-cooperation. Both countries have implicitly recognised the need for climate alignment: India's Standing Committee report and Pakistan's 2018 National Water Policy acknowledge climate change as a key stressor. Codifying ERU principles could provide a framework for mutual benefits, including environmental water to maintain river health and support endangered species.

Key Facts at a Glance

Treaty NameIndus Water Treaty (IWT), 1960

Current StatusIn abeyance (suspended by India after Pahalgam attack)

Key Principle AdvocatedEquitable and Reasonable Utilisation (ERU)

Legal Instruments Citing ERUHelsinki Rules 1966, UN Watercourses Convention 1997, Berlin Rules 2004

Other Treaties ReferencedCooperative Framework Agreement on Nile, Mekong River Commission, U.S.-Mexico Treaty 1944

International ObligationsRamsar Convention on Wetlands (1971), Convention on Biological Diversity (1992)

Specific Data Point (US-Mexico)75 million acre foot minimum flow over any 10 consecutive years at Lee Ferry

You've read the full analysis. Now test your understanding.

Practice exam-style questions based on this article.

Q1Static LinkageEasyUPSC, SSC, State PSC

Which international convention, mentioned in the article, requires signatories to conserve wetlands, especially those that are transboundary in nature?

Q2Statement-basedHardUPSC, SSC

Consider the following statements regarding the Indus Water Treaty (IWT) as discussed in the article:

1. The IWT was signed in 1960.

2. The treaty apportions a major portion of water from the western rivers to India.

3. The US-Mexico Treaty of 1944 includes a provision that prohibits depletion below 75 million acre foot over any consecutive 10-year period.

Which of the statements given above is/are correct?

Q3Data-centricMediumUPSC, SSC, Banking

According to the article, what is the specific minimum flow requirement at Lee Ferry under the US-Mexico Treaty of 1944?

Q4Application/ImpactMediumUPSC, SSC, State PSC

What is the primary reason the article argues for revising the Indus Water Treaty?

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Revise IWT: Codify Equitable Utilisation (ERU) Principles, Include Climate Change Flexibility

Exam Lens

Quick Exam Facts From News

1-Minute Revision

News Snapshot

IWT Suspended

Shift to Equitable Utilisation

Global Precedents

Detailed Analysis & Strategic Depth

Context / Background

Core Analysis: Limitations of the IWT

International Examples and Lessons

Other International Legal Obligations

Future Outlook / Way Forward

Prelims Flashpoints

Key Facts at a Glance