Calcutta Tramways Company
A horse tram system opened in January 1881, after a premature experiment in February 1873, a 2.4 mile(3.9 km) tramway service between Sealdah and Armenian Ghat Street was started. It wound up in November due to lack of takers .
The British-Indian government started The Calcutta Tramways Company Limited in 1880 as a registered joint stock company in London. The same year a metre gauge(MG) horse-drawn track between Sealdah and Armenian Ghat via Bowbazar Street, Dalhousie Square Customs House and Strand Road was laid 
The horse tram system opened in January 1881 and gave way to steam locomotives from 1882 .
By the end of the nineteenth century the company owned 166 tram cars, 1000 horses, seven steam locomotives and 19 miles (30km) of tram tracks .
Electric trams began running on March 27, 1902 and by 1921 there were 35 miles (56 km) of MG track and 512 cars in service 
The tram system is still operating today .
- The Hindu “Old Wheels still going strong” by Madhumitha Srinivasan, March 21, 2011"; Retrieved 31 Aug 2016
- "Tram Views of Asia/India/Calcutta"; Retrieved 31 Aug 2016
- Wikipedia “Trams in Kolkata"; Retrieved 31 Aug 2016
- Wikipedia "Tram transport in India/Kolkata""; Retrieved 31 Aug 2016