• The Gondwana rocks consist of sandstones with some shales and clays. They are of continental origin, fluviate and lacustrine deposits.
• The main areas of Gondwana rocks in the Peninsula are along the Damodar valley in Jharkhand, along the Mahanadi river valley in Chhattisgarh and Odisha, in the southern parts of Madhya Pradesh and a series of troughs along the Godavari from Nagpur to the Deltas.
• In the extra-peninsular region, these rocks are found in Kashmir, Darjeeling and Sikkim.

Economically, the Gondwana rocks are the most important in India, containing about 98% of her coal reserves. They have rich deposits of iron ore, copper, uranium and antimony also.