“Solar power in India is a fast-growing industry. As of 6 April 2017, the country’s solar grid had a cumulative capacity of 12.28 gigawatts (GW) compared to 6.76 GW at the end of March 2016. India quadrupled its solar power generation capacity from 2,650 MW on 26 May 2014 to 12,289 MW on 10 March 2017. The country added 3.01 GW of solar power capacity in 2015-2016, and 5.525 GW in 2016-2017, the highest of any year.”
Source: Wikipedia and multiple industry reports.
The Government of India has a clear policy and mandate for the Renewable Energy Sector, and specifically to Solar Energy. All policies and framework can be accessed on the MNRE website.