Q. The Arun River, Barun River, and Tamur River make the part of which among the following river systems?
Answer: Kosi River System
Notes: The Arun, Barun, and Tamur Rivers are part of the Kosi River System, which flows through Nepal and India. The Kosi River is known as the "Sorrow of Bihar" due to its frequent flooding. It is a major tributary of the Ganga and is important for its sediment load, which contributes to the fertile plains of the region.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 56 in 6. Drainage System, Rivers, Lakes, Waterfalls, Other Water Bodies in above course in App.