Hello Ashok,
In this case, you have foundation and plug-in in both systems. I assume you have set data source and business rules in GRC system, am I right?
If this is the case, you might have several problems as before SP 10 for GRC 10.0, backwards compatibility was not implemented yet. It means that you must follow SAP note 1352498 in order to synchronize your systems.
If this is not the case, have you checked these values in SCU3 in ECC system?
Best Regards,
Fernando