The construction of the Sela Pass tunnel is being done by Border Roads Organisation (BRO).
https://thenewsmill.com/2022/12/sela-pass-tunnel-in-tawang-to-provide-all-weather-connectivity-to-china-border/
The Sela Pass tunnel which will provide all-weather connectivity to the Indian Army towards the Line of Actual Control (LAC) near Tawang near the China border
https://thenewsmill.com/2022/12/sela-pass-tunnel-in-tawang-to-provide-all-weather-connectivity-to-china-border/
Sela Pass tunnel in Tawang to provide all-weather connectivity to China border
thenewsmill.comThe Sela Pass tunnel which will provide all-weather connectivity to the Indian Army towards the Line of Actual Control (LAC) near Tawang near the China border