On July 12 this year, Punjab's legislators passed an act which annulled all previous water sharing agreements with neighbouring Haryana and Rajasthan. It sparked off a dispute whose roots actually go back to the 1960 Indo-Pak Indus Water Agreement. In its haste to exact much more than India's due share, the then Union government included non-riparian areas in our side of the Indus basin. India eventually got only 20 per cent of Indus waters