Implementation of PayTM Payment Gateway

[mrsaicharan1]

Feature Description & Workflow
Integration of PayTM payment gateway is required to boost sales in India. The workflow would be in the following way

1. When an order is placed, we generate the checksumhash on the server-side.
2. to obtain the txn token, a call is to be made to the Initiate Transaction API with the checksum & parameters.
3. We fetch the available Payment Options from the Fetch Payment Option API.
4. User selects a payment option as Pay using PayTM
5. User enters mobile number linked to PayTM. Calls Send OTP API & Validate OTP API.
6. Call the Transaction Status API to verify the transaction response [essential]
7. Redirect the user to the appropriate order page in accordance with the response

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[iamareebjamal]

Please implement the endpoint in a way it is also usable on Android

[mrsaicharan1]

Please implement the endpoint in a way it is also usable on Android

Yeah, will take care.