The purpose of aadhar based time attendance system is to mark the attendance of employees using aadhar card number and the fingerprint stored in the aadhar card server. It helps to track and prevent proxy attendance. As part of the “Digital India” program of Government of India, it has been decided to implement common Aadhar based Biometric Attendance System (BAS) in the Central Government Offices (Agencies) located in Delhi which may be extended to offices of the state governments and other government institutions in future.