Kolkata traffic police — long criticized for carrying out a sham in the name of pollution checks — seem to be getting its act right.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/traffic-cops-crack-whip-vehicular-pollution
[2] http://admin.indiaenvironmentportal.org.in/category/author/dwaipayan-ghosh
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-kolkata
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kolkata
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-duty-vehicle