Hello @Vinod Sampath , Thanks for using Microsoft Q&A Platform.
Did you get a chance to check the custom question answering Rest API documentation? https://learn.microsoft.com/en-us/azure/ai-services/language-service/question-answering/quickstart/sdk?tabs=windows&pivots=rest
Import documentation: https://learn.microsoft.com/en-us/rest/api/language/question-answering-projects/import?view=rest-language-2023-11-15-preview&tabs=HTTP
Here is the similar thread you can refer to :https://github.com/MicrosoftDocs/azure-docs/issues/92169#issuecomment-1112233750
I hope this helps.
Regards,
Vasavi
-Please kindly accept the answer and vote 'yes' if you feel helpful to support the community, thanks.