Thanks for the reply Berhard.
If i add manually, it is displaying in su01 correctly.
And yes, the user is visible in User tab of PFCG for a composite role (even before i add it manually also).
One more important thing i observed is, for some users, if i go to display mode in su01, single roles are visible.
if i go in change mode, first time the roles are visible but when i click page down button, the roles are not visible.
Please suggest.
Thanks,
Sankar.