There is no silver bullet, govt is probably trying a multi thronged approach to address the problem. A Solar power plant is being built in Rajastan, Western India[0], one more in neighbouring Gujarat [1] & one more just got completed in South India [2], and there are nuclear power plants being built or in the initial design phase. These things take time, but there needs to be some interim solutions as well. Don't you think?

[0] - http://www.rrecl.com/PDF/Solar%20Park%20Bhadla%20Presentatio...

[1] - https://en.wikipedia.org/wiki/Gujarat_Solar_Park

[2] - https://en.wikipedia.org/wiki/Kamuthi_Solar_Power_Project