Court Rules in Favor of Pakistan in Indus Waters Treaty Dispute

The Permanent Court of Arbitration (PCA) in The Hague has ruled in favor of Pakistan in a dispute over the Indus Waters Treaty, reaffirming limits on India’s ability to store and regulate water on western rivers.

The case, initiated by Pakistan, challenged India’s use of “pondage” and related water-control structures in hydroelectric projects located in India-administered Kashmir, particularly the Ratle and Kishenganga projects.

The ruling states that the treaty—signed in 1960 between India and Pakistan—remains fully in force and cannot be unilaterally suspended by either side. It also supports Pakistan’s position that India’s water regulation capacity on western rivers is subject to strict technical limits under the agreement.

The decision strengthens Islamabad’s legal argument that certain Indian hydroelectric designs could allow temporary water retention beyond what the treaty permits. Pakistan has long raised concerns that infrastructure such as gated spillways and pondage systems could be used to manipulate river flows.

India, however, has strongly rejected the ruling. The Ministry of External Affairs of India said it does not recognize the arbitration process or its decisions, calling the tribunal “so-called” and declaring its findings “null and void.” India also reiterated that its decision to keep the treaty in abeyance remains unchanged.

The dispute comes amid already strained relations between the two nuclear-armed neighbors, whose diplomatic ties have remained largely frozen since last year’s escalation of tensions and brief military confrontation.

Experts say the ruling may have limited practical impact unless both sides agree to comply with international legal mechanisms. Some analysts argue that continued refusal by either party to engage with arbitration frameworks could weaken the treaty’s effectiveness in practice.

Despite the legal setback for India, some regional observers note that political realities and ongoing mistrust between the two countries make full implementation of the ruling unlikely without renewed diplomatic engagement.

The PCA decision highlights the growing importance—and fragility—of transboundary water agreements in South Asia, where river systems remain central to agriculture, energy production, and long-term regional stability.