Atal Tunnel: Here's How The Worl's Longest Highway Tunnel Looks Like From Inside

The Rohtang tunnel, a road link between Kullu and the landlocked Lahaul Valley, is the longest highway tunnel of the world. The final length of the tunnel is 9km. Situated in the Pir Panjal ranges, the highway tunnel will provide ample room for two-way traffic and is designed to cater to a maximum vehicular speed of 80 km per hour. Besides reducing road distance by approximately 46 km and saving travel time of five hours between Manali and Keylong, headquarters of Lahaul-Spiti, 3,000 vehicles can ply per day in the tunnel under any weather condition.