BHOPAL: If you believe the traffic police, there is not a single polluting vehicle in Bhopal.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/polluting-vehicles-none-bhopal-says-traffic-data
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-bhopal
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/madhya-pradesh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bhopal-t
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution-under-control-certification