Prime Minister Narendra Modi today held a meeting in New Delhi to take stock of Indus Water Treaty. NSA Ajit Doval, Principal Secretary to Prime Minister Nripendra Mishra, Foreign Secretary S Jaishankar, Water Resources Secretary Shashi Sekhar and other senior officials briefed Mr Modi on the 56-year old pact. <br/><br/>The treaty signed in 1960 by then Prime Minister Jawaharlal Nehru and then Pakistan President Ayub Khan, allocates 80 per cent of water from the six-river Indus water system to Pakistan. <br/><br/>Beas, Ravi, Sutlej, Indus, Chenab and Jhelum form the Indus water system that flows from India to Pakistan. The treaty, brokered by the World Bank, is often considered to be too one-sided and there has been growing clamour to relook at it. The pact has survived wars and phases of frosty ties between India and Pakistan.