The leases include four held by Tata Steel, three by SAIL and one by Odisha Mining Corp
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/odisha-sets-nov-15-deadline-clearances-eight-mines
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/orissa
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[5] http://admin.indiaenvironmentportal.org.in/thesaurus/steel-authority-india-sail
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tata-iron-and-steel-tisco
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/orissa-mining-corporation
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-empowered-committee-cec
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mineral-based-indsutry