Calcutta: Calcutta has ranked sixth among seven Indian cities in a Quality of Living report prepared by Mercer, a global consulting firm that has been doing the survey for two decades.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/city-lags-quality-index
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/telegraph-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-transport
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution