Links:
[1] http://admin.indiaenvironmentportal.org.in/news/karon-mein-diesel-prayog-par-rok-ho
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/rashtriya-sahara-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution