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The '''Diamond Harbour Line Railway''' was a broad gauge([[Rail_gauge#Broad_Gauge|BG]]) line constructed by the [[Calcutta and South Eastern Railway]](CSER) as a link to [[Diamond Harbour]] from their [[Calcutta]] to [[Port Canning]] line, it opened in 18631883.

<ref>[https://en.wikipedia.org/wiki/Sealdah_South_lines Wikipedia "Sealdah South lines"] Retrieved on 5 Apr 2016</ref> Ownership of CPSR was transferred to the Government of India([[Government of India |GoI]]) on 1st April 1868. The CPSR was merged into the [[Eastern Bengal Railway]](EBR) on 1st July 1884.

Ownership of CESR was transferred to the Government of India([[Government of India |GoI]]) on 1st April 1868. The CPSR was merged into the [[Eastern Bengal Railway]](EBR) on 1st July 1884. ==RecordsHistory==An on-line search The construction of the a dock at [[India Office RecordsDiamond Harbour]] (IOR) records held at with a railway to be called the ‘Calcutta and Diamond Harbour Railway’ to the bonded warehouses in [[British LibraryCalcutta]] relating to this railway <ref>was first proposed in a Report from 1838 [[http://searcharchivesCalcutta_Port_and_Docks_-_Railways#Diamond_Harbour_Dock_and_Railway_to_Calcutta_Proposal.bl2C_1838| - ''see separate page for details]]'' The ‘[[Calcutta and Diamond Harbour Dock & Railway Co Ltd]]’ was formed in 1845, a survey was undertaken but the construction was delayed.uk/primo_library/libweb/action/search.do?vid=IAMS_VU2 “British Library Archives and Manuscripts Catalogue” Land was allocated by the Government in 1853- Search]; Retrieved 5 Apr 201654 </ref>gives the following:-*British Library ‘India Office Records’ Z/E/4/24/C182; "Calcutta, Railways, Line to Diamond Harbour not to be undertaken by Government but land to be granted to private individuals for"; , 1853-54</ref>. However the Company did not proceed with the construction. In 1852-53 the ‘Diamond Harbour Scheme for railway communication with Calcutta’ proposal was put forward for consideratrion <ref>British Library ‘India Office Records’ IOR/E/4/819, pp229-231 “Docks and Harbours, Diamond Harbour, Scheme for railway communication with Calcutta”, 1852,53</ref> The ‘[[Calcutta and South Eastern Railway]]’ (CPSR)was formed in 1859 as a Guaranteed Company and opened their [[Calcutta]] to [[Port Canning]] line in 1862. The branch line to [[Diamond Harbour]] opened in 1863

see See '''[[Calcutta and South Eastern Railway]]''' <br>See '''[[Eastern Bengal Railway]]'''from 1884 onwards