Hi Karu,
-rw-rw---- 1 oracle asmadmin 4608 Mar 11 21:26 spfileERL1.ora
I think ownership for the file spfileERL1.ora should be as like
-rw-rw---- 1 oracle dba 4608 Mar 11 21:26 spfileERL1.ora
You need to provide dba group permissions on the file.Could you check once & try again.
Regards,