Zoji La Tunnel is an under-construction 9.5 m wide, 7.57 m high and 14.2 km long, horseshoe-shaped single-tube, 2 lane road tunnel at the height of 11,575 feet (3,528 m) above sea level which passes under the Zoji La pass in the Himalayas between Ganderbal of Kashmir (J&K) and Drass town in Kargil district of Ladakh.

The project cost for this smart tunnel (SCADA) system, constructed using the New Austrian tunneling method and equipped with CCTV, radio control, uninterrupted power supply, ventilation, etc is INR 8,308 crore (~US$1.04 billion) as per 2021 estimates.

Together with the adjacent Z-Morh Tunnel, this geostrategically important tunnel on the NH1 Srinagar-Leh Highway will provide year around weather-proof connectivity to Ladakh and Baltal (Amarnath cave), reduce the earlier 1-1.5 hours travel time to just 15 minutes drive, boost the tourism and economy, and enhance the logistics of the Indian Armed Forces.

This tunnel was a strategic requirement of the army and the Ladakhi people as the pass is close to the Line of Control (LOC) and vulnerable to hostile actions.

[7] The Zoji La tunnel project was approved by the Government of India in January 2018 and the commencement of its construction was inaugurated by the Prime Minister Narendra Modi in May 2018.