Hi Rupesh,
Are you using XDC to set Duplex?
I recommend to try this scenario.
https://service.sap.com/sap/support/notes/1806471 - IFbA: Additional print options
https://service.sap.com/sap/support/notes/1729666 - Enhanced print options for ADS printing
https://service.sap.com/sap/support/notes/1444342 - Device type-independent printing of interactive forms
With this SAP standard will receive and enhancement for "Additional Print options" in Print pop-up.
If your printer has duplex features, then you will be able to use the windows driver.
Regards,
Diego