PM Narendra Modi inaugurated world's longest highway tunnel 'Atal Tunnel' in Rohtang, Himachal Pradesh on October 3, 2020. The 9.02km long tunnel is at an altitude of 10000 feet (3048m) and is named after former Indian Prime Minister Atal Bihari Vajpayee. It is horse shoe shaped, single tube double lane tunnel with a roadway of 8m. It was constructed by the Border Roads Organisation (BRO).