Border Road Organisation (BRO) Projects Sub : Geo Sec: Mapping BRO Project Description Atal Tunnel Highway tunnel under Rohtang Pass in the eastern Pir Panjal range; Length: 9.02 km, horseshoe-shaped, finished width of 10 m at road level; altitude: 3,000–3,100 m. Sela Tunnel Located at an altitude of 3,973 m; Constructed using the […]