{{wikify-date|September 2006}} With the increasing population of Calcutta metropolis, and road transport being unable to cope with the demand due to bottlenecks in roads, it was felt necessary to introduce some other source of transport which will ease off the problem particularly at peak hours. Out of various modes including Tramcars and trolleybus, the railway was found to be most suitable. Unlike other metropolitan cities Calcutta does not have any rail route running through the heart of the city or piercing through the central district area, where more commuters will be seeking their transport. Previously a railway line existed between Dum Dum to Ultadanga for transport of wagons to Chitpur goods yard and some part between BBD bag to Majherhat existed for a long time for transport of goods from port area to the godowns of Calcutta port along the Ganges . these were built during the early EIR period when the river Hooghly was navigable to this area. Gradually with the silting of Hooghly and inaccessibility of bigger ships, these lines were out of use. With these existing lines being rehabilitated and small patches created at a few places it could establish a through connection between Dum Dum Junction and Prinsep Ghat along the bank of Hooghly. The original line was a single line track with loading and unloading sidings and wharfs . A few platforms were built and simulteneous reception facilities were constructed at some stations. The line was commissioned from Dum Dum Jn. to Prinsep Ghat on 16.8.1984. The rest portion from Prinsep Ghat to Majher Hat are under construction and expected to be completed soon. In fact the lines from Calcutta port were already existing for an interchange yard for E.Rly. and these lines are being modified/extended/ realigned for Circular Railway. Previously the trains were hauled by Diesel Shunters. The electrification works have been completed and four EMU trains originally destined for Sealdah during office hours have been diverted to central business district of Calcutta directly avoiding Sealdah station. It has been received with overwhelming support from commuters and the earning has quadrupled with the introduction of EMUs .Once connected to Majerhat it can easily ply up to Dum Dum . to complete the circle. This has been a boon to the office goers. Divisions : Sealdah Howrah Asansol Malda Workshops : Jamalpur Liluah Kanchrapara {{rail-stub}}