Indus Waters Treaty – History, Clauses, and Recent Developments

Indus Waters Treaty (IWT) is one of the most important water-sharing agreements in the world. It was signed in 1960 in Karachi by Indian Prime Minister Jawaharlal Nehru and Pakistani President Ayub Khan. World Bank acted as a broker and signatory. IWT continues to regulate how India and Pakistan share the waters of the Indus River system. 

Despite political tensions between the two countries, the treaty has functioned successfully for over six decades. However, recent conflicts and developments have raised questions about its future.

What is Indus Water Treaty?

The Indus Waters Treaty (IWT) was signed on 19th September 1960 between India and Pakistan, with the World Bank playing a major role in mediation and also signing the treaty. The treaty governs the distribution and use of water from six rivers in the Indus River System—Indus, Jhelum, Chenab, Ravi, Beas, and Sutlej.

The treaty allocates:

• Three Western Rivers – Indus, Jhelum, and Chenab – to Pakistan
• Three Eastern Rivers – Ravi, Beas, and Sutlej – to India

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India is allowed to use the western rivers for non-consumptive purposes like irrigation, hydropower generation, and navigation, but with strict conditions to ensure minimal interference with Pakistan’s water flow.

Also Read: Indus River System

Indus Water Treaty Rivers Division Table

This division of rivers helped both countries use their share for agriculture, power generation, and domestic needs while preventing direct conflict over water access.

Indus Waters Treaty Suspension

On April 22, 2025, a tragic militant attack in Pahalgam, Jammu and Kashmir, resulted in the deaths of 26 individuals, including 24 Indian tourists, one Nepali national, and a local guide. The assailants, reportedly affiliated with a group named Kashmir Resistance, targeted civilians in a brutal assault that has been described as the deadliest in the region since the 2019 Pulwama attack.

In the immediate aftermath, the Indian government convened a high-level meeting of the Cabinet Committee on Security (CCS), chaired by Prime Minister Narendra Modi. The CCS condemned the attack and announced a series of retaliatory measures aimed at Pakistan, which India holds responsible for supporting cross-border terrorism.

Suspension of the Indus Waters Treaty

Among the most significant actions taken was the suspension of the Indus Waters Treaty (IWT), a water-sharing agreement signed in 1960 between India and Pakistan, with the World Bank as a broker. The treaty allocates the waters of the Indus River system between the two countries, granting Pakistan rights over the western rivers (Indus, Jhelum, and Chenab) and India control over the eastern rivers (Ravi, Beas, and Sutlej).

Foreign Secretary Vikram Misri announced that the treaty would be held in abeyance until Pakistan takes credible and irreversible steps to cease its support for terrorism.

Pakistan’s Reaction and International Concerns

Pakistan vehemently opposed India’s actions, labeling the suspension of the IWT as “water warfare” and a violation of international law. Pakistani authorities warned that any attempts by India to divert water flows would be considered acts of aggression, potentially leading to severe consequences for regional stability.

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India-Pakistan Water Conflict

Over the years, the water-sharing mechanism under the Indus Waters Treaty has become a source of political and diplomatic tension. Disputes have mainly arisen over India’s construction of run-of-the-river hydroelectric projects on rivers allocated to Pakistan.

Some major points of contention include:

• Kishanganga Hydroelectric Project: Built on a tributary of the Jhelum, Pakistan claims it affects downstream water flow.
• Baglihar Dam: Located on the Chenab River, its design was challenged by Pakistan. A neutral expert appointed by the World Bank largely ruled in India’s favor.
• Ratle Project: Another proposed dam on the Chenab, which also became a subject of disagreement.

Major Dams Built Under the Indus Water Treaty

India has developed several key hydroelectric projects under the treaty’s guidelines. These are designed as run-of-the-river projects, which means they do not store large amounts of water, thereby complying with treaty rules.

These dams play a critical role in India’s energy needs but have also become diplomatic flashpoints.

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