Hi Vishnu,
I'm not sure what SP levels you're on - but there was a note from SAP:
http://service.sap.com/sap/support/notes/2072294
You might also try the following:
http://service.sap.com/sap/support/notes/2010059
Note: It's from 2014 and might not be applicable. We're on a later SP now and the issue is resolved. Sadly, I don't remember what we did exactly.
Thanks,
Erin