@Mohit It appears this issue is related to SAP PI/PO which is not supported by Azure. I checked and found some threads which might be helpful to resolve this.
Receiver SFTP adapter Error :Connection Reset
FTP :Error occurred while connecting to the FTP server "****host": java.net.SocketException: Connection reset
Hope this helps! If you are still facing issues I recommend reaching out to SAP for assistance.
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