Atal Tunnel, named after former Prime Minister of India, Atal Bihari Vajpayee is a highway tunnel built under the Rohtang Pass in the eastern Pir Panjal range of the Himalayas on the National Highway 3 in Himachal Pradesh, India. At a length of 9.02 km, it is the highest highway single-tube tunnel above 10,000 feet (3,048 m) in the world. With the existing Atal Tunnel and after the completion of under-construction Shinku La Tunnel, which is targeted to be completed by 2025, the new Leh-Manali Highway via Nimmu–Padum–Darcha road will become all-weather road.

Shingo La is a mountain pass in India, on the state boundary between Ladakh and Himachal Pradesh. It connects the Lahaul region of Himachal Pradesh with the Zanskar region of Ladakh. Nimmu-Padum-Darcha road, a strategic road with the unidirectional-twin-tube total-4-lane Shingo La Tunnel which is expected to be completed by 2025 will reduce the Manali to Kargil distance by 522 km, is being built on the pass to ensure an all-weather route to Ladakh, as an alternative to the Leh–Manali Highway.