Explanation:

The Chota Nagpur Plateau is a plateau in eastern India, which covers much of Jharkhand state as well as adjacent parts of Odisha, West Bengal and Chhattisgarh. The Indo-Gangetic plain lies to the north and east of the plateau, and the basin of the Mahanadi River lies to the south. The name Nagpur is probably taken from Nagavanshis, who ruled in this part of the country.Chhota (small in Hindi) is also the name of a village in the outskirts of Ranchi, which has the remains of an old fort belonging to the Nagavanshis.