Question

Which river has the largest drainage basin in India?

Answer 1

It's of river
$ganga$

Answer 2

There are 20 river basins/draining areas, large and small, in India. The Ganga basin is the largest. Narmada river is the fifth largest river and is also the largest west flowing river. Narmadabasin has been shown at index 15 in the basin map.