Ministry proposed a system of revenue sharing where the govt gets paid a part of the sales proceeds the moment production starts
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kelkar-wants-existing-regime-oil-contracts
[2] http://admin.indiaenvironmentportal.org.in/category/author/rajeev-jayaswal
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-gas
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oil-and-natural-gas-corporation-ongc
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oil-india
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fuel-pricing
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-petroleum-and-natural-gas
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy