India has three distinct physical divisions. The northern boundaries of India are provided by the lofty ranges of the Himalayas, which run almost in a wall-like shape from north-west to north-east. India has the Great Plains of northern India formed by the basins of three mighty river systems - the Indus, the Ganga and the Brahmaputra. Down below, India has the Deccan Plateau of Peninsular India, which is geologically the oldest structure of the Indian subcontinent. It consists of huge rock blocks of very ancient times.
The physical features of India can be broadly classified into the following physiographic divisions: