The Barog Tunnel is the longest tunnel (1144 meters/3752 feet) on the Kalka-Shimla route. The name of the English engineer in charge of its construction was, unsurprisingly, Barog.

However, the original tunnel built by him is at a distance of 1 km and the two ends of that tunnel didn’t meet. He was fined Rupee 1 (.02 cents or so) for this mistake and due to shame he committed suicide.