Pollution is a matter of concern in cities and towns and is caused due to introduction of contaminants into the environment viz.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/government-has-taken-series-steps-address-pollution-related-issues-environment-minister
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waste-management
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/regulations
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment-act-1986
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-act-1974
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-act-1981
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring