Order of the National Green Tribunal in the matter of Vardhaman Kaushik Vs. Union of India & Others dated 31/05/2016 regarding rising air pollution in cities of India. NGT directs the States to provide information on two or more most polluted cities in the States and also vehicular population.
Links:
[1] http://admin.indiaenvironmentportal.org.in/content/order-national-green-tribunal-regarding-rising-air-pollution-cities-india-31052016
[2] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/petrol
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[6] http://admin.indiaenvironmentportal.org.in/thesaurus/national-green-tribunal-ngt
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/court
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/two-and-three-wheelers