Dudhkumar River the Raidak or the Sankosh river of west bengal (India) enters Bangladesh near Pateshwary and is renamed as the Dudhkumar. The river receives the Gadadhar and the Gangadhar as tributaries at Pateshwary and travels along a 52 km long meander course and joins the brahmaputra at kurigram sadar upazila. Most of the main course of the Dudhkumar lies in India. The river is free from tidal influence, but often overflows. [Md Mahbub Murshed]
See map in brahmaputra-jamuna river system.