Is there an option for if i mount file share in webapps ,will the azure webapps act as SFTP

Sasmita1994 - the recommended way to use SFTP in Azure is an ACI (Azure Container Instance) with Azure Files as it's persistent storage. You can view the steps to do this here:

https://docs.microsoft.com/en-us/samples/azure-samples/sftp-creation-template/sftp-on-azure/

The screenshots are a bit dated, but functionally similar.

Thanks