The Union ministry of New and Renewable Energy (MNRE) issued a circular to all state governments to this effect.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/solar-farms-do-not-need-green-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-chronicle-telangana
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/telangana
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-policy
[7] http://admin.indiaenvironmentportal.org.in/thesaurus/environment-clearance-ec
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-new-and-renewable-energy
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy