What are you trying to achieve?
What is the refund category of paytm?
Welcome to the Make community!
Unfortunately, Make doesn’t have an integration for this third-party service yet.
If the external service has a Developer API Reference/Documentation then you should be able to integrate the endpoints in Make using the generic HTTP “Make a request” module.
You can also suggest for it to be made in the Idea exchange. Don’t forget to search for it first, just in case someone already suggested it, so that you don’t end up creating a duplicate.
If you need assistance in setting up the built-in generic HTTP modules, please provide additional information about what you have tried in relation to the external service’s Developer API Reference — how you are setting the connection up, a link to the endpoint are you trying to connect to, and what errors you are encountering.
You can also complete this brand new course/tutorial in the Make Academy on how to use external APIs — API calls with HTTP modules
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Investing some effort into the Make Academy will save you lots of time and frustration using Make.