Detailed video is here :

     PM Surya Ghar Scheme for rooftop solar installation       

Steps for calculate rooftop area and cost :

1. Open below URL : 
                                                     

    

2. Click on Calculator or use this link :  https://pmsuryaghar.gov.in/rooftop_calculator

2.  Fill the details like Your State, Your Category, Your Average Monthly Bill and Press Calculate Button.


3. You can see below similar details as here :