Zojila Tunnel Achieves Breakthrough: India's Longest Road Tunnel to Link J&K and Ladakh Year-Round

On June 10, 2026, India's most ambitious mountain road tunnel project reached a landmark moment when the Zojila Tunnel — at 13.14 km, the world's longest single-tube, bi-directional road tunnel at high altitude — achieved its final breakthrough. The ceremony took place at Minamarg in Kargil district, marking the completion of the main tunnel excavation work after years of challenging construction in the Himalayas.

The Zojila Tunnel connects Sonmarg in the Ganderbal district of Jammu and Kashmir to Minamarg in Ladakh. It has been built at an elevation ranging from 2,900 metres to 3,310 metres (with the Zoji La pass standing at approximately 11,578 feet) using advanced engineering techniques suited for extreme snowfall, avalanche-prone terrain, and complex geological conditions. The entire corridor project — spanning about 33 km across two Union Territories, Jammu and Kashmir and Ladakh — includes twin-tube tunnels, five bridges, and two snow galleries along the Z-Morh to Zojila section. The project is being implemented by the National Highways and Infrastructure Development Corporation Limited (NHIDCL) and executed by Megha Engineering and Infrastructures Limited (MEIL). The total project cost stands at approximately ₹6,800 crore.

Before this tunnel, the Zoji La pass — the only road link between Kashmir Valley and Ladakh — remained closed for at least five months each winter due to heavy snowfall, avalanches, and dangerous road conditions. During this period, Ladakh was largely cut off from the rest of the country by road, forcing residents and the military to rely on expensive air travel, with airfares reported to exceed ₹40,000 during peak winter months. The new tunnel will provide all-weather, year-round road connectivity, reducing the approximately two-hour drive between Sonmarg (J&K) and Minamarg (Ladakh) to just 30 minutes. More broadly, the travel time between Ganderbal and Kargil is expected to drop from around three hours to slightly over 20 minutes.

From a strategic standpoint, the tunnel holds significant importance for India's defence infrastructure. Ladakh shares borders with both China and Pakistan, and uninterrupted road access is critical for the rapid movement of troops and the supply of equipment and logistics to forward positions. The tunnel is equipped with modern safety systems including automated fire detection, advanced CCTV surveillance, a ventilation system, and cross-passage facilities for pedestrians — making it suitable for continuous heavy-duty use. The project is expected to reach full operational status by 2028.

Beyond defence, the tunnel is expected to catalyse economic growth in both Union Territories. Improved connectivity will support local employment, boost tourism — particularly in destinations such as Sonmarg and Kargil — and strengthen supply chains for essential goods. The broader infrastructure package announced alongside the breakthrough includes 19 tunnels across J&K and Ladakh being developed at a combined cost of ₹25,000 crore, reinforcing the government's push for integrated development of the two regions through modern road infrastructure.