Jammu and Kashmir's Chenani-Nashri tunnel, touted as India's longest tunnel, is also the country's "safest", with provisions to ensure the safety of passengers from fire incidents and collision inside the 10.89 km-long tunnel on the Jammu-Srinagar Highway, says a top official. The Chenani-Nashri tunnel in Udhampur district, built with new Austrian tunnel technology, has a series of smart safety features -- all functioning through a single software. "Its uniqueness is that it has an Integrated Tunnel System, under which all the systems such as Entrance Detection Control System, Electrical Fire Signalling System and Video Surveillance System and Evacuation Broadcast System, are controlled through one particular software," Ashutosh Chandwar, Vice President of Infrastructure Leasing and Financial Services (IL