(a) The Part of the Peninsular plateau lying north of the Narmada river is called Central Highlands. These highlands are made up of hard igneous and metamorphic rocks.

(b) It is bordered by Aravali range to the north-west. The Central Highlands include the Malwa plateau to the west and Chotanagpur plateau to the east.

(c) The Central Highlands are wider in the west and become narrow eastwards. The eastward extension of the Malwa plateau is locally called Bundelkhand and Baghelkhand. Chotanagpur plateau in the east is drained by Damodar river, a southern tributary of Ganga river.