Compare the rivers of the Deccan plateau with those of the Himalayas.
- While the Himalayan rivers originate in the snow-capped glaciers in the Himalayas, the rivers of Deccan mostly originate in the Western Ghats.
- Because the Himalayan rivers get water from snow covered glaciers, they are perennial. The Peninsular rivers originate in hills and mountain ranges in southern, western and central parts of the country and depend upon rainfall for their supply of water. Hence, they become dry during summer season. They are non-perennial.
- The Himalayan rivers have large basins and large catchment areas. The Deccan rivers have small basins and small catchment areas.
- While the Himalayan rivers irrigate the Northern Indian Plains, the Deccan rivers irrigate the peninsular Plateau of India.
- The bed rocks of the Himalayan rivers are soft, sedimentary and easily erodible. The bed rocks of the Deccan rivers are hard.