Sela Tunnel
Entrance of Sela Tunnel in 2025 | |
| Overview | |
|---|---|
| Location | Sela Pass, Tawang district, India |
| Coordinates | 27°30′26″N 92°04′58″E / 27.5073°N 92.0827°E |
| Status | Inaugurated |
| Operation | |
| Work begun | 15 October 2020 |
| Opened | 9 March 2024 |
| Operator | National Highways and Infrastructure Development Corporation Limited (NHIDCL) |
| Traffic | Motor vehicles |
| Technical | |
| Length | 12.04 km |
| No. of lanes | Two (one in each direction) |
Sela Tunnel is a road tunnel at 3,000 metres (9,800 ft) which ensures all-weather connectivity between Guwahati in Assam and Tawang in Arunachal Pradesh. This tunnel is the longest bi-lane tunnel in the world at 13,000 feet. Situated 400 metres below the Sela Pass, the Sela Tunnel offers a vital passage, especially during the winter season. The tunnel helps move troops, weapons, and machinery quickly along the Sino-India border. It is connected with NH13 by a new 12.4 km road and has reduced the distance between Dirang and Tawang by 10 km. It was inaugurated by PM Modi on 9 March 2024. Executed by the Border Road Organisation (BRO), the project features two tunnels and a link road. Tunnel 1 is a 980-metre-long single-tube tunnel, while Tunnel 2 is a 1,555-metre-long twin-tube tunnel, with one bi-lane tube for traffic and the other for emergency services. The link road between these tunnels spans 1,200 metres. The tunnel provides access to Tawang by an all-weather road in the western region of Arunachal Pradesh throughout the year.