One Time Password (OTP) or One Time code (OTC) lock-based safe. It is a mobile app-based lock with connectivity thru Bluetooth, it can be connected to a WiFi router for instant access around the globe. The features include Time based & OTP unlocking via a code generated. Finds its application in cash carry & high-value product van movements, petrol pumps, remote access based any locking/unlocking with audit trail download facility.