In Newsriver
Subansiri River
Tibet, Arunachal Pradesh and Assam, India
Why in news
Apr 2026
The Brahmaputra's largest tributary hosts India's biggest hydel project, whose unallocated power Assam and Meghalaya declined to buy.
Key facts
- The Brahmaputra's largest tributary hosts India's biggest hydel project.
UPSC relevance
Prelims
Prelims may ask its origin, the states or countries it flows through, and tributaries.
Mains
Mains (GS-1/GS-3): inter-state water disputes and river interlinking debates.
Asked in UPSC
2014
Frequently asked questions
Why is Subansiri River in the news?
Apr 2026: The Brahmaputra's largest tributary hosts India's biggest hydel project, whose unallocated power Assam and Meghalaya declined to buy.
Why is Subansiri River important for UPSC?
Prelims may ask its origin, the states or countries it flows through, and tributaries. Mains (GS-1/GS-3): inter-state water disputes and river interlinking debates.
Last updated: 2026-10-09