Explanation:

Chenani-Nashri tunnel is India’s longest highway tunnel, on the Jammu-Srinagar national highway.
The length of the tunnel is 9.28 km. The world’s longest highway tunnel is 24.51 km and is in Norway.
It will reduce the travel distance between Jammu and Srinagar by 30.11 km, which will help save fuel worth Rs 27 lakh daily.
Built on the lower Himalayan range at a height of 1,200 metres, it will cut travel time between the two cities by at least two hours.