Attendance and time
Biometric attendance: what the machine at the gate settles
Biometric attendance is recording a shift by reading a physical trait, usually a fingerprint, a face or an iris, on a device fixed at the entrance. The reading is matched against a template enrolled for that employee and the punch is stamped against their name. Employers adopt it so one person cannot mark the day for a colleague who has not arrived.
Last reviewed: September 2026
Also called: biometric attendance, fingerprint attendance, biometric punch, face attendance
In plain English
A machine at the door reads a finger or a face and marks that person present. Nobody can sign the register for a friend who is still on the way.
How it works in detail
Fingerprint readers spread through Indian factories and shop floors because a paper register was easy to fill in for somebody else. A device at the gate ties the punch to the body that made it. Enrolment happens once, the device holds a template rather than a picture of the finger, and every punch after that is a match against the stored template.
The trouble with these devices is physical. Worn fingertips on masons and machine operators fail to read. Wet hands, a cut, a long queue at shift change, a power cut, a unit that quietly stops syncing: each one leaves a gap somebody fills in by hand later. A device also covers only the gate it is bolted to, so field technicians, riders and site crews never touch it and stay on a phone call or a register.
A worked example
The setup
Say Imran works a full 30-day month on INR 27,300 at a workshop. The reader failed on his thumb twice that month and both days went into the run as absent.
The calculation
INR 27,300 / 30 = INR 910.00 per day. 2 unread days x INR 910.00 = INR 1,820.00, so the run paid INR 27,300 - INR 1,820.00 = INR 25,480.00 rather than the full salary.The result
Imran queried it after payday and INR 1,820.00 was added back the next month. The supervisor's gate register was the only record that he had been there.
Common mistakes
- Keeping no written fallback for a failed read. Worn and wet fingers fail often enough that a supervisor's note for that day belongs in the daily routine, not in an argument after payday.
- Treating the device output as the pay record. The machine gives punch times, and somebody still has to turn those into paid days, half days and approved leave before a salary exists.
- Buying a gate device for a workforce that never passes the gate. Riders, service staff and site crews stay on paper anyway, and the office ends up running two systems at once.
How VTClock handles it
VTClock uses no biometric device. There is no fingerprint, face or iris capture and no reader to connect. Attendance is a geofenced phone check-in near the employee's assigned office.
Frequently asked questions
Can the punch machine at our gate feed its readings into VTClock?
No. VTClock reads no biometric device and captures no fingerprints, faces or irises anywhere in it. Attendance is marked from the employee's phone near the office they are assigned to, and the check-in reaches the admin desk with a location pin on it. A business that wants to keep the machine at the gate keeps it as a separate record and reconciles the two by hand each month.
Does the law require a biometric record of attendance?
What the labour rules for your state and your establishment ask for is a maintained record of who worked and for how long, under the state Shops and Establishments Act or the factory rules that apply to you. The method of capture is generally the employer's own choice. The obligations and the form of the register vary by state, so confirm what applies to you with your consultant.
What should happen on a day the reader will not accept a worker's thumb?
Have one route decided in advance and written on the wall beside the device. Usually the supervisor notes the name and time in a book, and whoever runs payroll enters that day before the month is closed. Without a settled route, the worker only finds out on payday, and you spend the argument on a day everyone can already remember imperfectly.
Can a gate device and a phone-based record run side by side?
They can, and plenty of businesses do it while switching over. Nothing passes automatically between them, so somebody compares the two lists each month and decides which one the salary is built from. Pick that source before the first payroll, tell the staff which record counts, and retire the second one once the first has run cleanly for a couple of months.
Related terms
- GeofencingGeofencing is drawing a circle of a chosen radius around a work location and accepting an attendance punch only when the employee's phone reports a position inside that circle.
- GPS attendanceGPS attendance is marking a working day from a phone, where the app reads the device's satellite position at the instant of the punch and stores it alongside the check-in time.
- Attendance registerAn attendance register is the day-by-day record of who was present, absent, late or on leave across a wage period.
- Muster rollA muster roll is the daily attendance register an employer keeps under labour rules, listing each worker by name with the days worked and the hours put in during a wage period.
- Late markA late mark is the entry an employer records when an employee checks in after the shift start time and after whatever grace minutes the policy allows.
- Shift grace periodA shift grace period is a fixed window after the shift start time in which a check-in is still treated as on time.
Modules that touch this
See how VTClock handles biometric attendance
Tell us how your team is paid and where attendance is recorded today. We will show you what the module does with it.