Hi Nitin,
while checking for logs you need to select the appropriate check box as "checked", else you will not be able to see any logs in RSECADMIN in BI.
furthermore to give little idea about RSECADMIN, i would like to inform you that it stores logs even if authorization check is passed.
hope it answers your question.
if you have any doubts, let me know I will be happy to clarify those.
k/r,
Suresh