Looking for a payment processing solution for the Indian market, INR only.

Hi everyone.

We are launching a new casino online for the Indian market only(as of now), and we are looking for payment solutions for pay-ins and pay-outs as well.
If this is something that you can provide, please give us more details about
- Payment solutions available (such as UPI, IMPS, NEFT, RTGS, etc)
- Settlement fees, minimum settlement, time frame for settlement.
- Integration time required?
- How do you manage chargebacks?
etc

Thank you for your time reading my message, and hope to hear from you guys soon!

P.S. We only look for fiat currency INR method, not crypto.

Best regards,
Jones.