Hi Sriram,
The key path is correct because the key file is found.
When it is not found you get a specific error message.
For me this is not possible to determine the root cause of this issue.
Opening a ticket with CA Support will be a better approach.
Giving the exact context; Software or Virtual appliance implementation, Release version, Service Pack, Cumulative Patch, Hot Fixes, Installation from scratch or upgrade,
happening in a start up step or when doing specifics tasks once IME is up, etc.
Regards,
Philippe.