Today's office needs to be smart for lower opex. Two major use cases are attendance & time management to ensure employee productivity. IoT enabled smart office can take care of it. Through Raspberry Pi-based solution employees entering office can be recognised and entry time can be logged. In the background image recognition based AI will run. For hourly based employee billing (e.g. in BPOs) sensor based seat, occupancy time can be measured. It will help to measure exactly how long an employee actually was in his seat.