Answer
Brahmaputra
Explanation
This tunnel is being built under the Brahmaputra river between Gohpur and Numaligarh in Assam.
Key Points
- > River: Brahmaputra
- > State: Assam
- > Type: Road-cum-rail tunnel
Additional Information
- It will increase connectivity in Northeast India.
- The Brahmaputra river originates from Mansarovar in Tibet.
- It is the largest river in India in terms of water carrying capacity.
| Tunnel | Location | River |
|---|---|---|
| Underwater | Assam | Brahmaputra |