Explanation:

The Ranchi Plateau is the largest part of the Chota Nagpur Plateau. The elevation of the plateau surface in this part is about 700 m (2,300 ft) and gradually slopes down towards south-east into the hilly and undulating region of Singhbhum (earlier the Singhbhum district or what is now the Kolhan division). The plateau is highly dissected. The Damodar River originates here and flows through a rift valley. To the north it is separated from the Hazaribagh plateau by the Damodar trough. To the west is a group of plateaux called pat.