Add ICICI Payment Gateway Integration

My custom-built website is ready for online transactions and now needs ICICI Bank’s payment gateway fully integrated. I want visitors to be able to pay with credit or debit cards, UPI, and net-banking in one smooth flow.

You will connect the ICICI API to the existing checkout, set up the success, failure and webhook callbacks, and make sure order details post back correctly to my admin panel. Start in the sandbox so we can test every scenario, then move to live credentials once everything checks out. Please add basic logging for failed or disputed payments and provide a short hand-off guide covering where to update keys and endpoints.

Security and PCI compliance are critical; the integration must not disrupt any current site functions or styling. I’ll supply merchant keys, server access, and any other materials you need as soon as we start.

Let me know your relevant experience with ICICI (or similar Indian gateways), the language or framework you’ll use, and an estimated timeline for delivery.