India solar capacity by 2020

Electricity is the purest form of energy and can be used as an input to be converted into a varied input - hot, cold, very hot, motion etc. The technology to converting this is also not so expensive doe to advancements and commoditization. So the west is concentrating on solar PV.
India's case is different. Let us not build cooled/temperature glass buildings in a tropical country just coz some rich markets in higher latitudes do it. In other words it may prove to be very costly to build big solar PV and supply to a leaky grid with lots of subsidized consumer sections.

First let us start making the grids smart (let it be the newer ones being built in regions that did not have power) and also cities with good user-charges-payment-culture.
Then support rooftop solar PV with emphasis on local level demand satisfaction.
See if we can bypass the grid for some applications in densly populated areas. This will increase capacity of grid to be flexible.  Then economics will decide how much more power installation is required.

India's original vision was to have 100000 MW solar capacity by 2020 and 2 lakh MW by 2030. Unfortunately India curtailed the target to 20000 MW by 2022. Two scientists from IISc, Bangalore has projected that India's energy requirement of 3700 TWh by 2070 could be met from solar sector. We have to revisit the original plan and reschedule all infrastructure build up on a war footing.