The Union transport ministry on Monday once again referred to a couple of scientific studies to back their argument that vehicles were not a major source of PM 2.5 emissions.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/centre-cites-more-studies-oppose-ban
[2] http://admin.indiaenvironmentportal.org.in/category/author/jayashree-nandi
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-institute-technology-iit
[8] http://admin.indiaenvironmentportal.org.in/thesaurus/national-green-tribunal-ngt
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb