Links:
[1] http://admin.indiaenvironmentportal.org.in/news/first-ppp-coal-project-take-next-year
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/new-indian-express-bhubaneswar
[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/coal
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal-industry