Hello Abhinav Santi,
Please follow thease threads on http request limits:
- Azure application gateway (https://video2.skills-academy.com/en-us/answers/questions/1289335/what-is-the-request-body-size-limitation-of-azure)
- Api Management (https://video2.skills-academy.com/en-us/answers/questions/1349741/what-is-the-limit-of-the-http-request-header-field / https://github.com/MicrosoftDocs/azure-docs/blob/main/includes/api-management-service-limits.md)
- App Service (https://video2.skills-academy.com/en-us/answers/questions/1662094/azure-app-service-request-size-limit)
If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.
Regards,
Luis