Before the year started the cost of solar had gone down by 60% and this year it has already come down by further 15%
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/solar-tariff-stay-below-rs-6-unit-hero-future-energies-cites-steep-decline-input-costs
[2] http://admin.indiaenvironmentportal.org.in/category/author/sumit-jha
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/power-industry
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-policy
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/madhya-pradesh
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy