 Damodar river is a seasonal river, basically 82% of which is filled up by rainfall in July–September.1 June to 31 October is the filling period during which rainwater is stored and the stored rainwater is used for irrigation by the downstream areas of Burdwan, hydroelectric power generation and scores of other activities.Maithon Hydel Power Station (MHPS) is located on the river Barakar about 12.9 km above its confluence with the Damodar near the border of Dhanbad & Burdwan districts of the states of Jharkhand & West Bengal respectively.