Srikanth-
If you get a chance please recheck OSS note 1876899. It was updated January 14, 2014, and HR Renewal is supported within the Enterprise Portal. The note now states, "HR Renewal 1.0 (EA-HR 607 SP14) supports NWBC 4.0 as well as Enterprise Portal (Refer SAP Note: 1701634). Enterprise Portal does not support the Golden Reflection theme used by the lanes. The Golden Reflection theme should be passed as a URL parameter in the SAP UI5 iView configuration."
The note goes on to say that when calling the HR Professional role directly in the browser you must solve the issues like no logout feature and session management.
Thanks,
Dave
