On July 18, 2008, Calcutta High Court had passed a comprehensive order to combat vehicular pollution in the city with a series of clearly defined deadlines and directives.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/action-not-taken-report
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/telegraph-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/high-court
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/calcutta-d