Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ongc-gas-well-leak-affects-four-villages
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/telegraph-north-east
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-tripura
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oil-and-natural-gas-corporation-ongc
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gas-leakages
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agartala