In a watershed moment for South Asian geopolitics, the Indian government officially suspended its participation in the Indus Waters Treaty (IWT) in April 2025. The historic agreement, which has governed the sharing of river waters between India and Pakistan since 1960, was unilaterally paused by New Delhi on the grounds of national security. The move has sent diplomatic shockwaves through the region, further straining the already fragile relationship between the two nuclear-armed neighbors and raising urgent concerns about water scarcity, ecological disruption, and regional stability.
The decision was announced by Prime Minister Narendra Modi, who stated that “water and blood cannot flow together,” signaling that ongoing hostilities and cross-border terrorism would no longer be compartmentalized from issues of resource governance. India’s suspension of the treaty is widely viewed as a response to continued militant activity in Kashmir, which Indian officials allege is sponsored or tolerated by Pakistan. However, critics argue that the decision risks weaponizing water, a critical and increasingly scarce resource, in ways that could destabilize millions of lives downstream.
The Origins and Structure of the Indus Waters Treaty
The Indus Waters Treaty, brokered by the World Bank in 1960, is one of the oldest and most durable water-sharing agreements in the world. It allocates control over six rivers in the Indus basin: the three eastern rivers (Ravi, Beas, and Sutlej) were given to India, while the three western rivers (Indus, Jhelum, and Chenab) were designated for Pakistan. The treaty has survived multiple wars and long periods of tension, serving as a rare instance of functional cooperation amid broader hostility.
Under the treaty, India is permitted limited use of western river waters for non-consumptive purposes such as hydroelectric power and agriculture, but it is required to allow the majority of the flow to reach Pakistan unimpeded. A bilateral commission was established to resolve disputes and share data, and the agreement was widely credited with preventing water from becoming a flashpoint in the subcontinent’s volatile security landscape.
India’s 2025 decision effectively dismantles this framework, raising serious legal, diplomatic, and environmental questions.
Strategic Calculations and Domestic Pressures
Domestically, the suspension plays well with Modi’s political base, especially among nationalist constituencies that have long argued India has been too lenient on Pakistan. In the lead-up to state elections, the Bharatiya Janata Party (BJP) has promoted water control as a symbol of sovereign strength and self-determination. Modi’s speech at a rally in Punjab declared that “our rivers belong to our people, and we will not let them be used against our nation.”
Indian officials argue that Pakistan has violated the spirit of the treaty by failing to prevent terror groups from launching attacks from its soil. They also claim that the treaty was negotiated under drastically different geopolitical and climatic conditions, and that climate change, population growth, and irrigation needs now require a new approach to transboundary water management.
The move aligns with broader trends of securitizing natural resources. In recent years, India has initiated multiple hydroelectric projects on the western rivers, prompting objections from Pakistan. While these projects have technically complied with treaty terms, they have intensified mistrust and fueled accusations of water hoarding.
Pakistan’s Response and the Escalating Diplomatic Rift
Pakistan’s reaction has been swift and alarmed. Islamabad condemned the move as a violation of international law and called on the World Bank to intervene. Pakistan’s Foreign Office stated that India’s actions constitute a “flagrant breach of a legal obligation” and warned of “severe consequences for regional peace and food security.”
Water from the Indus system is essential for Pakistan’s agricultural sector, which employs over 40 percent of the population and contributes nearly one-fifth of GDP. Disruptions to the flow of the Indus and its tributaries could lead to crop failure, water shortages in urban centers, and heightened rural unrest.
Pakistan has also raised the issue with the United Nations and the Organization of Islamic Cooperation (OIC), seeking to internationalize the dispute. Meanwhile, Pakistani media has warned of a looming “water war,” and militant groups have seized on the rhetoric to rally support, further complicating security dynamics in the region.
Climate Change and the Politics of Scarcity
The suspension of the IWT comes at a time of intensifying climate pressures in South Asia. Himalayan glaciers, which feed the Indus system, are retreating rapidly due to rising temperatures. Unpredictable monsoons, extreme droughts, and groundwater depletion have already placed enormous stress on water systems throughout the region.
Against this backdrop, the unilateral dismantling of cooperative water-sharing frameworks could have devastating consequences. Experts warn that competition over water in the subcontinent is no longer hypothetical, and that India and Pakistan are among the most water-stressed countries in the world.
What makes the situation especially volatile is the lack of viable alternatives. No new regional water governance mechanisms are currently in place, and trust between the two countries is at historic lows. Without formal communication channels or a mutually recognized dispute resolution mechanism, even minor disagreements over dam releases or water levels could escalate into military confrontations.
Legal Ambiguity and the Role of International Actors
Although the Indus Waters Treaty is a bilateral agreement, it was guaranteed and partially financed by the World Bank. This gives the bank a limited but significant role in mediating disputes. However, its influence has waned in recent years, and it has taken no public stance on India’s suspension of the treaty.
Legal scholars are divided on whether India has the right to unilaterally withdraw. Some argue that the Vienna Convention on the Law of Treaties does not allow states to abandon international agreements without justification, particularly when they concern shared natural resources. Others contend that treaties cannot remain frozen in time, and that India’s grievances over terrorism and environmental change may constitute valid grounds for renegotiation.
Either way, the lack of a clear legal roadmap leaves the door open to escalating confrontation, especially if either side decides to build new infrastructure or restrict flow volumes without consultation.
The Perils of Politicizing the Indus
The Indus River system is not just a geopolitical issue, but an ecological lifeline. It sustains more than 300 million people across both countries and supports diverse ecosystems, from mountain wetlands to desert deltas. Turning water into a tool of political coercion threatens not only regional security, but the foundational balance between people and nature.
India’s suspension of the treaty signals a dangerous precedent—one where the logic of sovereignty trumps the imperative of sustainability. It transforms a shared resource into a potential weapon, intensifying tensions in a region already vulnerable to conflict and climate shocks.
As diplomatic channels grow colder and the rivers run hotter, the challenge ahead is not just about water, but about how nations navigate the space between nationalism and necessity.
Reference
BBC News. (2025, April 20). India suspends Indus Waters Treaty with Pakistan amid rising tensions. BBC News. https://www.bbc.com/news/world-asia-india-pakistan-indus-2025