Q. Yamuna river was the tributary of which of the following rivers before it became a tributary of the Ganga river?
Answer: Indus
Notes: Previously Yamuna river had a course towards the southwest direction. It was a tributary of the Indus river.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 182 in 6. Drainage System, Rivers, Lakes, Waterfalls, Other Water Bodies in above course in App.