Bengal Nagpur Railway Company 1887 - 1952
The Bengal-Nagpur Railway (BNR) was formed in 1887 to take over the metre gauge Nagpur-Chhattisgarh Railway, to convert the existing metre gauge track to broad gauge and to extend the system eastwards to join the East Indian Railway at Asansol, 132 miles from Calcutta. The BNR was the last company to be nationalised, on 1 October 1944. In 1952, the BNR was merged with the East Indian Railway to form Indian Railways' Eastern Railway but in 1955, BNR re-emerged to form South Eastern Railway.