Wikipedia
Chenani
Chenani is a small town and a notified area committee in Udhampur district of Indian state of Jammu & Kashmir. India's longest road tunnel, the 9.2 km long Chenani-Nashri Tunnel or Patnitop Tunnel is being constructed about 2 km from Chenani town to reduce the distance from Jammu to Srinagar and reduce traffic jams on NH-1A that occur due to snowfall and avalanche in winter at Patnitop.