Question

what is called as perennial river​

Answer 1

Answer:

A perennial stream or perennial river is a stream or river (channel) which has a flow of water throughout the year through at least parts of its stream bed during years of normal rainfall. ... All other streams, or parts of them, should be considered seasonal rivers or lakes.

Answer 2

The rivers that have water throughout the year are called perennial rivers. In India Himalayan Rivers like Ganga and Bhramaputra are perennial rivers. These are both rain fed and formed through melting of the glaciers