Chota Nagpur plateau, plateau in eastern India, in northwestern Chhattisgarh and central Jharkhand states. The plateau is composed of Precambrian rocks (i.e., rocks more than about 540 million years old). Learn about the Chota Nagpur Plateau, a significant geographical region in eastern India with rich mineral resources and diverse landscape. Find out its geological features, climate, vegetation, and cultural and historical significance. Learn about the Chota Nagpur Plateau, a geological and cultural region in eastern India, covering Jharkhand, Odisha, West Bengal, Bihar, and Chhattisgarh. Explore its formation, features, climate, mineral resources, tribal communities, and rivers. The Chota Nagpur Plateau is a huge region that includes numerous significant mountain ranges, including the Hazaribagh Range, the Ranchi Plateau, and the Singhbhum hills, and is mostly found in the states of Jharkhand, Bihar, and Chhattisgarh.