Chota Nagpur Plateau has the remains of an old fort belonging to the Nagavanshis. The Chhota Nagpur Plateau is a continental plateau—an extensive area of land thrust above the general land. The plateau has been formed by continental uplift from forces acting deep inside the earth. The Gondwana substrates attest to the plateau's ancient origin. It is part of the Deccan Plate, which broke free from the southern continent during the Cretaceous to embark on a 50-million-year journey that was violently interrupted by the northern Eurasian continent. The northeastern part of the Deccan Plateau, where this ecoregion sits, was the first area of
North India Towards its north are the Himalayas which define the boundary between the Indian subcontinent and the Tibetan plateau. To its west is the Thar desert, shared between North India and Pakistan and the Aravalli Range, beyond which lies the state of Gujarat. The Vindhya mountains are, in some interpretations, taken to be the southern boundary of North India. The predominant geographical features of North India are: The state of Madhya Pradesh has large areas under forest cover, as do Himachal Pradesh, Uttarakhand and Chhattisgarh. North India lies mainly in the north temperate zone of the Earth. Though cool or cold