Hi Dinesh,
> can you please update me how safe is command brspace -f tbreorg -t "*" -a cleanup command in running system?, and its impact on EDI40 table?
It is safe and has no impact on the original table. The database objects with the suffix "#$" are related to the interim (table) object and it is cleaned up with PL/SQL procedure DBMS_REDEFINITION.ABORT_REDEF_TABLE (and following drop).
http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_redefi.htm#i998327
Regards
Stefan