Bidalgwar Glacier on the west side of Tharkot and Mrigthuni Glacier, Sukhram Glacier, and Sundardunga Glacier on the eastern side, all the glacier flows from north to south. From the eastern side glaciers comes out Sundardunga river that joins Pindari River near Khati village. Pindari river later joins Alaknanda river at Karnaprayag. Alaknanda River is one of the main tributaries of river Ganga that later joins Bhagirathi River the other main tributaries of river Ganga at Devprayag and became Ganga there after.