Links:
[1] http://admin.indiaenvironmentportal.org.in/news/beneath-eastern-fields-may-lie-indias-energy-saviour
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/damodar
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/barddhaman-d
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oil-and-natural-gas-corporation-ongc