is a low - level plain located in the eastern part of the Great Plains of India and is formed by the deposits of river Brahmaputra. It covers an area of about , sq.km. These plains create alluvial fans and marshy tracts. The Peninsular Plateaus The plateau region lies to the south of the Great Northern Plains.
This is the largest physiographic division of our country. It covers an area of about lakh sq.km (about half of the total area of the country). It is an old rocky plateau region. The topography consists of a series of plateaus and hill ranges interspersed with river valleys.
Aravalli Hills mark the north-western boundary of the plateau region. Its northern and north-eastern boundaries are marked by the Bundelkhand Upland, Kaimur and Rajmahal Hills. The Western Ghats and the Eastern Ghats mark the western and eastern boundaries respectively. The altitude of a large portion of the plateau is more than m from mean sea level.
The peak of Anaimudi is the highest point in the plateau . Its height is , m and is located in Anaimalai. The general slope of this plateau is towards east. The Great Plateau is a part of the Gondwana (very ancient one) land mass.
Due to the old age, the rivers in this region attained their base level and developed broad and shallow valleys. The river Narmada divides the plateau region of India broadly into two parts. The region lying to the north of the Narmada is called the Central Highlands and the region lying to the south of Narmada is called the Deccan Plateau. All the major rivers (Mahanadi, Godavari, Krishna, Kaveri etc.) lying to the south of the Vindhyas flow eastwards and fall into the Bay of Bengal.
Narmada and Tapti are the two rivers situated to the south of the Vindhyas flow westward. Their movement towards west is due to the presence of a rift valley in the region. a) Central Highlands The Central Highlands extend between the river Narmada and the Northern Great Plains. The Aravallis form the west and northwestern edge