Hi Sir, Thanks for your response.
I tried as per your instructions and following results i am getting:
[root@ init.d]# mysqladmin -uadmin -p`cat /etc/psa/.psa.shadow` -h127.0.0.1 --protocol=tcp shutdown
mysqladmin: connect to server at '127.0.0.1' failed
error: 'Can't connect to MySQL server...