The city administration is once again making serious attempts to make pollution under control (PUC) certificates mandatory for purchase of diesel and petrol in the national capital.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhi-again-tries-link-puc-sale-fuel
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-age-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution-under-control-certification
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/petrol