Waterways of india

Does anyone have sources for minor waterways in india?

Have a look on

This are old maps (no license probleme) with a lot of names for rivers and streams. Maybe part of the names have changed since 1955.

Oh thanks will check em out

AMS maps are good for larger rivers and seems to be reliable for villages. But I’ve seen rivers all over Karnataka recorded as being named ‘Hire Halla’ (big river) and other such names that don’t seem too likely in practice.