Under the Indus Water Treaty, India was granted unrestricted access to the water from the ‘Eastern Rivers’, and Pakistan retained rights to that from the ‘Western Rivers'.

The Indus Waters Treaty, brokered in 1960, allocates water from six rivers between the two nations. Under the treaty India controls the water from the Beas, Ravi, and Sutlej (eastern rivers), while Pakistan has rights over the Chenab, Indus, and Jhelum (western rivers).

India has issued a notice to Pakistan seeking a review of the 1960 Indus Water Treaty, citing imbalances and new challenges like changing demographics, energy needs, and security concerns. This pivotal water-sharing agreement now faces pressure from evolving geopolitical and environmental factors.