This river is rich in mineral assets, the valley is home to huge scale mining and modern action. Prior known as the Sorrow of Bengal due to its attacking surges in the fields of West Bengal, the Damodar and its tributaries have been to some degree restrained with the development of a few dams. It is the most contaminated stream of India by 2003. The Chota Nagpur Plateau gets a normal yearly precipitation of around 1,400 mm 55 in, every last bit of it in the rainstorm months amo ngst June and August. The colossal volume of dilute that streams the Damodar and its tributaries amid the rainstorm used to be a rage in the upper scopes of the valley. In the lower valley it used to flood its banks and surge vast territories.