Thanks Divyanshu for the reply.
After changing the password for j2ee_admin in secstore(config tool) and restart of system, I am able to open VA in my system. My issue is that user j2ee_admin is getting locked intermittentlyin 001 client for which we checked all the RFC's and sld, but nowhere j2ee_admin is mentioned.
Also, when i tried to open SDM i could not open it with the new password. It opened with the old password,so thus got confused whether the password got updated in secstore properly or not.
Please help.
Regards,
Himanshu