Question

Most important inland drainage system in india

Answer 1

The Indian Drainage System is divided into 3 categories: (1) Major River Basin with catchment area up to 20000 sq. km. and above, accounts for 83% of the total run off and are 13 in number in India.  (2) Medium River Basin with catchment area of 2000-20000 sq. km. and above accounts of 8% of the total run off all the rivers and are 45 in India. (3) Minor River Basin with catchment area up to 2000 sq. km. It accounts for 9% of the total run off among all the rivers with 55 basins in India.

2. On the basis of physiographic origin the Indian drainage may be distinguished as the Himalayan drainage and the peninsular drainage. Himalayan drainage system mainly comprises the basin areas of the Indus, the Ganga and the Brahmaputra. These are mostly perennial and youth having gorges, V-shaped valley and depositional features like Deltas.

☺HOPE IT HELP YOU