Links:
[1] http://admin.indiaenvironmentportal.org.in/news/coal-ministry-considering-disinvestment-cil
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mineral-based-industry
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-coal
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal-india