Jaya,
Can you provide us with the export file that you are using as well as the organization name that it was created under in DEV, and the organization name you are attempting to import it to in PROD. Additionally, can you share with us if this is an OnPrem or SaaS environment? If its on-prem, can you send us the jasperserverlog as well so we can take a look at it?
Thanks,
Jon I.