Earlier, the ministry of new and renewable energy had announced concessions and incentives to promote solar units.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/telangana-centre-tightens-norms-provide-solar-units-subsidy
[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/thesaurus/comptroller-and-auditor-general-india-cag
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-policy
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy