Give geographical reason.
There is a difference in the formation of the Meghalaya Plateau and the Deccan Plateau.
The Meghalaya plateau is a type of block mountain. It was formed when horizontal movements of the waves within the earth’s crust moved away from each other creating tension on the surface finally creating faults. When the surface between two parallel faults rises up, it forms block mountains. It is characterized by a flat top and steep sides as seen in the Meghalaya Plateau.
The Deccan plateau is a by-product of a volcanic eruption. During the eruption in a fissure type volcano, the magma comes out not from one single vent but from several fissures. This magma cools down and forms a gently rolling plateau as seen in the Deccan plateau.