"This tour is an obligation imposed on both the countries by the Indus Waters Treaty 1960 between India and Pakistan. Under the Treaty, both the commissioners are mandated to inspect sites and works on both the sides of Indus basin in a block of five years," a senior official said.
Since signing the treaty, a total of 118 such tours on both the sides have been undertaken by the commission.
This tour was originally scheduled in October 2018 but later postponed because of local bodies and panchayat polls in J&K.
Under the Indus Water Treaty, waters flowing in three of Indus tributaries -- the Sutlej, the Beas and the Ravi -- have been allotted to India; while the Chenab, Jhelum and Indus waters have been allotted to Pakistan.