Links:
[1] http://admin.indiaenvironmentportal.org.in/news/aasu-unit-demands-closure-coke-industry
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/assam-tribune-guwahati
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/assam
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/guwahati