Dhansiri is the main river of Golaghat District of Assam and the Dimapur District of Nagaland. It originates from Laisang peak of Nagaland. Dhansiri river is the Assam and Nagaland border It flows through a distance of 352 km from south to north before joining the Brahmaputra on its south bank. Its total catchment area is 1220 kmē