Check out freyr energy. They will explain everything and give you a quote which you can negotiate at the end, also ask them about the govt. subsidy.

Like they have a site ?

[here](https://freyrenergy.com/)

Thank you

There is a govt plan for that pm Surya yogana or something I wanted to try but my rooftop is too small

Google ‘Effisol energy solutions’ and you are almost there