Idea thrown open by NITI Aayog, who proposed a unified tax regime for the industry, where all royalties, levies, duties and taxes will be subsumed into GST
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/national-mineral-policy-may-consider-unified-tax-regime
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/herald-panjim
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/goa
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/minerals
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-mines
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-mineral-policy-2008