In a first such initiative in Maharashtra's prisons, the Yerawada Central Jail in Pune has reduced the usage of LPG by opting for an energy-efficient solar cooking system.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pune%E2%80%99s-yerawada-jail-goes-green-solar-cooking-system
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/daily-news-analysis-mumbai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pune-t
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-cookers
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy