Power is not that cheap in India its 0.06-0.10$
Salary is debatable so lets leave
Actually, that's not true. Power rates here are not uniform throughout the country. There are some states that have exceptionally dirt cheap rates. And they are also very suitable for a large-scale mining setup. If only the political atmosphere regarding cryptos were a little fairer, we would soon see large scale mining plants being set up in those states pretty soon.
I dont think india's infastructure can handle mining and I dont see why any government will want to subsidize electricity for miners.