Kolkata may run faster than it usually does in a few years from now, thanks to the Central clearance to the East-West Metro Railway project, the work for which will begin some time early April.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/central-nod-east-west-metro-rail-project-kolkata
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/pioneer-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-transport
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/metro
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/calcutta-d