Parents whose children are due for an Aadhaar biometric update should consider completing the process before September 30, 2026. According to the information provided, the Unique Identification Authority of India (UIDAI) has kept the Mandatory Biometric Update (MBU) free for eligible children during this period.

The biometric update is particularly important as children grow because fingerprints, iris details and facial features can change significantly with age. Keeping these details updated can make Aadhaar-based authentication easier for services such as school-related processes, scholarships and government schemes.

Parents or guardians can take their child to an Aadhaar enrolment or update centre to complete the required biometric process.

What Is Mandatory Biometric Update in Aadhaar?

Aadhaar enrolment works differently for very young children. For children below five years of age, fingerprints and iris scans are generally not captured because these biometric characteristics are still developing.

Once a child reaches the prescribed age, biometric details need to be captured or refreshed. This process is known as Mandatory Biometric Update (MBU).

There are two important stages parents should remember:

After the child turns 5: The child's fingerprints, iris scan and photograph need to be updated.

After the child turns 15: Biometric details need to be updated again because physical and biometric characteristics may have changed considerably since the previous capture.

These updates help keep the child's Aadhaar record aligned with their latest biometric information.

Why Should Parents Update Aadhaar Biometrics?

Aadhaar is commonly used as an identity document for various purposes. For children, it may be required or useful during school admissions, scholarship applications, examinations and access to eligible government benefits.

If biometric information has not been updated at the appropriate age, Aadhaar authentication may sometimes become difficult.

Updating the information at the required stage can therefore help reduce the possibility of authentication-related problems later.

Free Biometric Update Available Till September 30

According to the details shared, eligible children's Mandatory Biometric Update can currently be completed without paying the usual biometric-update fee until September 30, 2026.

Parents who have been postponing the process may therefore want to complete it before the deadline instead of waiting until the final few days.

The update requires biometric capture, so unlike some Aadhaar demographic services, this process cannot simply be completed entirely from home. The child needs to visit an Aadhaar enrolment/update centre for biometric capture.

The official UIDAI website can be used to check Aadhaar-related services and current rules.

What Happens During the Biometric Update?

At the Aadhaar centre, the child's latest biometric information is captured. Depending on the applicable update, this can include fingerprints, iris scans and a new photograph.

The Aadhaar number itself does not change after the biometric update. Instead, the latest biometric information is linked to the child's existing Aadhaar record.

Parents should carefully check the acknowledgement or update receipt provided after completing the process and keep it until the update is successfully reflected.

Don't Confuse Biometric Update With Aadhaar Document Update

Parents should also understand that Mandatory Biometric Update is different from updating demographic information such as an address, name or other details.

An MBU specifically concerns biometric information captured at prescribed ages.

Therefore, even if the child's name, date of birth and address are already correct, the biometric update may still be required when the child reaches the relevant age.

Around 2 Crore Children's Biometrics Updated

According to the information provided, around 2 crore schoolchildren have already had their Aadhaar biometrics updated across the country.

A special campaign was also launched to increase awareness and make biometric updates easier for school-going children. The initiative reportedly reached more than 1.56 lakh schools.

Such campaigns are particularly useful for children whose Aadhaar was created when they were very young but whose biometric information has not subsequently been refreshed.

What Happens After September 30?

The current free-update window mentioned in the report runs until September 30, 2026.

Parents should avoid assuming that the free period will automatically be extended. If UIDAI does not announce another extension or fee waiver, the applicable charge under the prevailing Aadhaar fee structure may have to be paid afterward.

It is therefore safer to check the latest UIDAI notification before visiting an Aadhaar centre, particularly if completing the update close to or after the deadline.

How Parents Can Prepare Before Visiting

Before heading to a centre, parents should check whether the child's Aadhaar is actually due for Mandatory Biometric Update and confirm the latest requirements on UIDAI's official channels.

They should carry the child's Aadhaar details and any documents required under the prevailing UIDAI rules. Checking the centre location and appointment availability beforehand can also save time.

Avoid sharing Aadhaar numbers, OTPs or personal documents with unknown agents or unofficial websites.

Why You Shouldn't Wait Until the Last Day

A large number of families may try to complete the process as the September 30 deadline approaches. This could lead to longer queues or difficulty finding convenient appointment slots at some Aadhaar centres.

Completing the biometric update early gives parents more time to address any issue that may arise during the process.

Key Takeaway

If your child's Aadhaar is due for a Mandatory Biometric Update, September 30, 2026 is an important date to keep in mind under the current free-update window.

Biometric details are captured after the prescribed age milestones because children's fingerprints, iris patterns and appearance develop as they grow. Keeping these details updated can help make future Aadhaar authentication smoother.

Parents should complete the process at an authorised Aadhaar centre and check the latest rules on UIDAI's official website before visiting. Most importantly, don't assume that the free-update period will necessarily continue beyond September 30 unless UIDAI officially announces an extension.