If you are starting off as a clean energy access entrepreneur in India, you really should be considering joining an incubation program to get your seed capital and access to the entrepreneurial ecosystem.
Here is a list of technology business incubators and accelerators in India who have experience in incubating and accelerating clean technology companies. There is no specialized incubator for clean energy access companies so you can choose between incubators who have a social enterprise focus or more technology focused incubators. The CIIE in IIM Ahmedabad has a focus on clean technology.
If you are graduating from an incubator you should consider the GSBI-New Ventures Energy Access Investment Readiness project to help raise your next round of external capital.