We cannot transfer the amount in Paytm and bank account, we need to come up with a coin which can be used in the game and later can be redeemed.
You need to make in-app purchases for the coin in the game and settle payment through google and they will charge a commission on that.
Please initiate chat so I can give you a complete scenario of the payment and revenue model of the game so you are aware of the limitations and feature scope of the game.
I will be sharing some of my most appreciated work over chat so please initiate chat and let me know if you have any questions.
Looking forward to working with you.
Thanks!