Hi SRIRAMANUJAN,
Welcome to Sony Community!
We're sorry to hear that you're having problem with the BIOS password. Resetting or removing a forgotten BIOS password on the notebook/ computer can only be successfully performed by a service technician. Please contact the Sony offices/Sony representative offices nearest to your place of residence in Asia Pacific region http://www.sony-asia.com/countryselector.html?hpid=countryselector:AsiaPacific. Due to proximity, they are in a better position to respond to your questions or concerns.
Regards,
Jen
Answered your question? Glad I could help! Please Click the "Accept as Solution" button below.