This document proposes an advanced security system for bank lockers using biometric authentication and GSM technology. The system aims to provide more secure access to bank lockers than traditional key-based systems. It works by enrolling users through fingerprint scanning and storing their fingerprint data and mobile number in a database. When a user wants to open their locker, the system verifies their identity by matching their fingerprint and sends a one-time password via SMS to their registered mobile number. The user then enters this password to unlock the locker, providing two-factor authentication through biometrics and mobile verification. The system is designed to address security issues with lost or duplicated keys and keep pace with digital authentication methods.