Indian Payment Gateway Integration for App

I am seeking an experienced developer from India to integrate a payment gateway into an already developed meeting scheduling app for professionals. The app will be operating in India, so familiarity with the Indian payment landscape is essential.

Key Requirements:
Location: Developer must be based in India.
Experience: Demonstrable experience in integrating payment gateways for deposits and withdrawals in mobile applications.
Scope of Work:
Integrate a secure and reliable payment gateway for both deposits and withdrawals.
Familiarity with popular Indian payment gateways like Razorpay, Paytm, UPI, etc. and understanding of their compliance requirements.
Ensure a seamless user experience for payment processing, including handling edge cases and errors.
Test and validate the payment integration for smooth operation in a live environment.
What I Am Looking For:
A developer with a strong background in payment gateway integration for the Indian market.
Experience with fintech apps or similar platforms where secure and efficient payment processing is critical.
Ability to complete the integration efficiently and ensure the app is compliant with relevant payment regulations.
Clear communication and a proactive approach to problem-solving.