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The longstanding Indus Water Treaty, a vital agreement governing water distribution between India and Pakistan, is now at the forefront of escalating tensions between the two nations. Recent developments have seen Pakistan’s government assertively defending its rights to water resources, amid fears that India’s decisions could lead to conflict. With historical hostilities and current geopolitical strains, the treaty’s future hangs in the balance.
Escalating Diplomatic Standoff
In a significant escalation of rhetoric and diplomatic tensions, Pakistan’s climate change minister, Musadik Malik, recently threatened severe repercussions for any interference with the country’s water supplies during an international conference in Islamabad. He accused India of unlawfully controlling Pakistan’s allocation from the shared river system, a claim that highlights the fragility of the treaty, which has previously endured wars and diplomatic freezes.
For over a year, relations between India and Pakistan have deteriorated sharply, culminating in a brief but intense conflict in May 2025, ignited by a terrorist attack in Pahalgam, Kashmir, that resulted in 26 fatalities. India held Pakistan responsible for harbouring the militants involved, while Islamabad denied any connection to the incident. The diplomatic rift deepened further when India announced a suspension of the Indus Water Treaty on 23 April 2025, coupled with a downgrading of diplomatic relations and closure of land borders.
Understanding the Indus Water Treaty
The Indus Water Treaty, established in 1960 with the support of the World Bank, delineates the division of the six rivers of the Indus basin between the two countries. Under this agreement, Pakistan has rights to the three western rivers—Indus, Jhelum, and Chenab—while India retains control over the eastern rivers—Ravi, Beas, and Sutlej. India is permitted limited use of the western rivers for non-consumptive purposes, such as hydropower generation, but is prohibited from altering their flows in a manner that could adversely affect Pakistan’s water access.
India’s recent declaration to suspend participation in the agreement is unprecedented, as the treaty contains no provisions for such actions. Indian officials have stated that the treaty will remain inactive until Pakistan ceases its alleged support for cross-border terrorism. Although India has not yet significantly altered water flows from the western rivers, the uncertainty surrounding the treaty has raised concerns about its implications for Pakistan’s already precarious water management systems.
Legal and Environmental Implications
The controversy surrounding the treaty’s suspension is compounded by the absence of legal mechanisms for such an action, leading experts to express concern about the potential erosion of predictability in water management. Himanshu Thakkar, coordinator of the South Asia Network on Dams, Rivers and People, noted that while immediate disruptions may not occur, a breakdown in communication regarding data-sharing and project reviews could have far-reaching consequences for downstream water management.
Under the treaty, India is obligated to permit 43 million acre-feet of water to flow into Pakistan annually, which constitutes approximately 80 per cent of the country’s surface water—crucial for agricultural and urban needs. Pakistani officials have strongly condemned India’s actions, with Energy Minister Awais Leghari labelling it “an act of water warfare.” Malik reiterated that any attempt to restrict Pakistan’s water supply would be met with fierce resistance.
A Call for Renegotiation
While the immediate threat may not lie in India cutting off water flows, environmental experts warn of the risks posed by the slow degradation of river systems and the potential loss of predictability. Muhammad Abdullah Deol, a water scientist, suggested that this moment could serve as an impetus for both nations to renegotiate the treaty, adapting it to contemporary realities.
Deol emphasised the necessity for both countries to address outdated irrigation practices that result in significant water wastage. As populations grow and climate change exacerbates water scarcity, a collaborative approach to resource management could enhance both agricultural productivity and ecological sustainability.
Why it Matters
The Indus Water Treaty stands as a critical framework for cooperation between India and Pakistan, two nations with a fraught history. Its potential suspension raises profound concerns not only for regional stability but also for the future of transboundary water agreements globally. As climate change intensifies and water scarcity becomes an increasingly pressing issue, the need for collaborative management of shared resources will be paramount. Resolutions reached in this context could set precedents for similar conflicts worldwide, making the Indus Water Treaty a focal point in the discourse on international water law and cooperation.
