Question

sapti,ghagara,gandak,kosi are the tributaries of which river

Answer 1

Sapti,ghagara ,gandak ,Kosi are the tributaries of Ganges River

Answer 2

Sapti, ghagara, gandak, kosi are the tributaries of river Ganges. The tributaries are the part of the main river.

They diverge their routes from the main river and form another shape. Where Gandak is groundwater-fed meandering river. Ghagra is the major left bank tributary.

Kosi is the major tributary which is known as the sorrow of Bihar because of the major flood occurrence.