Indus Waters Treaty 1960: India-Pakistan Water Dispute & Challenges

GS II: India and its neighborhood relations.

Context: The Indus Waters Treaty (IWT), 1960 has come under renewed strain amid India–Pakistan tensions, disputes over hydropower projects, parallel arbitration processes and growing concerns over cross-border terrorism and climate change.

Indus Waters Treaty, 1960

• Mediated by World Bank: The treaty was signed in 1960 between India and Pakistan with World Bank mediation.
• Eastern Rivers: Ravi, Beas and Sutlej were allocated primarily for India’s use.
• Western Rivers: Indus, Jhelum and Chenab were allocated primarily to Pakistan.
• India’s Rights: India retains limited rights over western rivers for domestic use, agriculture and hydropower generation, including run-of-the-river projects.

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Run-of-the-River Projects

• Meaning: Hydropower projects that generate electricity using the natural flow of a river without large-scale storage.
• Advantage: They utilise the flow and elevation of water while involving relatively limited storage.
• Key Projects:
  • Kishanganga Project: 330 MW, on the Kishanganga River, a tributary of the Jhelum.
  • Ratle Project: 850 MW, on the Chenab River.

Pakistan’s Concerns

• Design Dispute: Pakistan alleges that the projects have excessive pondage/storage capacity, enabling India to regulate downstream flows.
• Treaty Violation: Pakistan argues that such design features could provide India with greater control over western rivers.
• Water Dependence: Pakistan’s substantial dependence on the Indus river system makes water-flow disruptions a major strategic concern.

Dispute-Resolution Mechanism

• Permanent Indus Commission: Deals with routine issues and differences in interpretation.
• Neutral Expert: Intended primarily for technical disputes, including issues concerning project design.
• Court of Arbitration: Provides a mechanism for resolving legal and treaty-related disputes.

Parallel Arbitration Controversy

• Pakistan’s Approach: Pakistan approached the Court of Arbitration, bypassing the Neutral Expert route for the project-design dispute.
• India’s Objection: India argued that the dispute was primarily technical and should be examined by a Neutral Expert.
• World Bank’s Role: In 2016, the World Bank paused both processes to prevent conflicting outcomes; both processes were subsequently revived in 2022.
• Procedural Ambiguity: Parallel proceedings created concerns over jurisdiction, conflicting decisions and treaty interpretation.

Post-Pahalgam Tensions

• Treaty on Hold: Following the April 2025 Pahalgam terror attack, India placed the treaty in abeyance, linking its cooperation with an end to cross-border terrorism.
• PCA Ruling: The Permanent Court of Arbitration (PCA) maintained that the treaty remained in force and rejected India’s position regarding the temporary hold.
• India’s Position: India has rejected the PCA process and its jurisdiction, maintaining that it did not participate in the proceedings.

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Emerging Challenges

• Procedural Uncertainty: Simultaneous arbitration mechanisms create jurisdictional and institutional ambiguity.
• Water–Security Linkage: The linkage of cross-border terrorism with water cooperation has deepened bilateral mistrust.
• India’s Hydropower Goals: Prolonged disputes can affect India’s hydropower and clean-energy ambitions.
• Pakistan’s Vulnerability: Heavy dependence on the Indus system makes Pakistan particularly vulnerable to water insecurity.
• Climate Change: Glacier melt, changing precipitation patterns and extreme weather events require the treaty framework to adapt to new hydrological realities.

Way Forward

• Strengthen Permanent Indus Commission: Make it the primary platform for bilateral consultation and dispute prevention.
• Clarify Institutional Roles: Establish clearer boundaries between the Permanent Indus Commission, Neutral Expert and Court of Arbitration.
• Balanced Diplomacy: Maintain strategic firmness alongside channels for dialogue.
• Climate Resilience: Incorporate climate change and changing river flows into long-term water management.
• Regional Cooperation: Promote cooperation on flood management, hydrological data and disaster resilience, where feasible.
• Security–Water Balance: Address legitimate security concerns without permanently closing avenues for water diplomacy.

Conclusion

The Indus Waters Treaty faces a new security and climate reality. India needs a calibrated approach combining strategic interests, institutional clarity, climate resilience and diplomatic engagement to protect its water and energy interests while avoiding further regional instability.

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