The work was awarded to a joint venture of AFCONS Infrastructure Limited, an Indian construction company of Shapoorji Pallonji Group, and STRABAG AG, Austria, in September 2009. The drilling of the Rohtang Tunnel through the Himalayan ranges began on 28 June 2010 at the South Portal, 25 km (16 mi) north of Manali.

Which is the fastest train in India?

As of 2021, the fastest train of India is Vande Bharat Express with a top speed of 180 km/h (110 mph) which it attained during a trial run. While the fastest operating train is Gatimaan Express with a top operating speed of 160 km/h (99 mph).

Why are tunnel made?

Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. Tunnels can be connected together in tunnel networks.