श्यामा प्रसाद मुखर्जी सुरंग) is a 9.28-kilometre-long (5.77 mi) road tunnel connecting the towns of Chenani and Nashri in Jammu and Kashmir, India.

This all-weather tunnel bypasses an old section of Highway which is full of hair-pin bends and snowfall and avalanche prone areas in winter at places like Patnitop, Kud, and Batote that obstructed the highway every winter and caused long queues of vehicles; sometimes for days.

Later, due to a dispute between the construction workers and the executing agency, the work was delayed and the next planned date was then further extended to July 2016.

However on 3 February 2017, official sources said that the project was getting delayed due to bad weather conditions and snowfall on the highway, which snapped the electricity supply to the area and so the executing agency was unable to continue with the required testing and inspection processes.

We were unable to make payments to our subcontractors.."[10] The tunnel was inaugurated by the Prime Minister Narendra Modi on 2 April 2017.

The two tubes — each approximately 9 km long — are connected by 29 cross passages at regular intervals of every 300 metres along the entire length of the tunnel.

As soon as sensors detect fire, a safety protocol will kick in, and the pushing of fresh air will stop and only exhausts will function.

Longitudinal exhaust fans installed at regular intervals will concentrate on 300 m on either side of the fire, pushing the smoke upward.

Ambulances or vehicles carrying foam will rush through the escape tunnel to evacuate commuters and fight the fire.

[5] Because of this two-lane tunnel, the distance between Chenani and Nashri and hence between Jammu and Srinagar is reduced by 30 km and travel time is cut by two hours.