The Peninsular Plateau
The peninsular plateau is a tableland. It is composed of the oldest rocks because it was formed from the drifted part of the Gondwana land. Broad and shallow valleys and rounded hills are the characteristic features of this plateau.
The plateau can be broadly divided into two regions, viz. the Central Highlands and the Deccan Plateau.
1: (a) North, 2: (c) East, 3: (b) Northwest to southeast, 4: (c) Satpura, 5: (d) West to east, 6: (a) Luni, 7: (c) Three, 8: (b) Konkan, 9: (a) Two, 10: (c) Northern Circar
The Central Highlands
The Central Highlands lies to the north of the Narmada river. It covers the major portion of the Malwa plateau. The rivers in this region flow from southwest to northeast; which indicates the slope of this region. It is wider in the west and narrower in the east. Bundelkhand and Baghelkhand mark the eastward extension of this plateau. The plateau further extends eastwards into the Chhotanagpur plateau.
The Deccan Plateau
The Deccan Plateau lies to the south of the Narmada river. It is triangular in shape. The Satpura range makes its northern part. The Mahadev, Kaimur Hills and Maikal range make its eastern part. The slope of the Deccan Plateau is from west to east. It extends into the north east which encompasses Meghalaya, Karbi-Anglong Plateau and North Cachar Hills. Garo, Khasi and Jaintia hills are the prominent ranges; starting from west to east.
The Western and the Eastern Ghats
They make the western and eastern edges of the Deccan Plateau. The average elevation of Western Ghats is 900 – 1600 metres, compared to 600 metres in case of Eastern Ghats. The Eastern Ghats stretch from Mahanadi Valley to the Nilgiris in the south. The Western Ghats cause oceanographic rains as they face the rain-laden winds from west.