International to domestic passenger baggage allowance

5 of us will be traveling from cdg to BOM in business class. I’ll be booking separate tickets on my own for BOM to AMD in the front row of indigo (XL seats). I’ll be bringing 5 20kg bags and 5 5kg checkin size luggage(total 10 checin luggage pieces) with me. What is baggage policy for international passengers flying domestic on same day? Online says excess baggage price per kg. Does anyone know clear rules for this? Thanks in advance.