Hi Purushottam,
As stated by Manu, delete sap* user from 000 client. Add parameter login/no_automatic_user_sapstar=0. Then restart sap. then try login with sap* password PASS in 000 client.
when you delete use below command...Replace SCHEMA with your sap schema as per my screenshot when you go to system status from menu from any client.
delete from SCHEMA.USR02 where BNAME = 'SAP*' and MANDT = '000';
Thanks,
Kavitha Rajan.