Why Biometrics Change in Growing Children
A child's fingerprints and iris patterns evolve significantly during their early years.
To maintain the accuracy of the Aadhaar database and ensure that the child can authenticate their identity later in life, UIDAI has mandated two stages of biometric updates, known as Mandatory Biometric Updates (MBU).
The Two Stages of MBU
Stage 1: At Age 5
When a child reaches 5 years, their initial 'Baal Aadhaar' (the blue-colored card) needs to be updated with their first set of biometrics (10 fingerprints, both irises, and a facial photograph).
Prior to this age, Aadhaar is linked to the parent's biometrics.
Stage 2: At Age 15
By age 15, the biometrics are considered mature and likely to remain stable for adulthood.
This second MBU captures the final facial and fingerprint data that will be used for future authentications, bank KYC, and competitive exams.
Is there a Fee for MBU?
UIDAI offers Mandatory Biometric Updates for free.
If an Aadhaar centre charges for these specific updates, residents can report it to the 1947 helpline.
However, if you combine an MBU with a demographic update (like changing an address), a nominal fee may apply for the demographic portion.
Consequences of Not Updating
Failure to complete the MBU can lead to the Aadhaar becoming Inoperative.
This means the child will not be able to use the Aadhaar for school admissions, scholarships, or opening a bank account.
It is highly recommended to complete the update within 2 years of the child reaching the specified age.
Process at the Centre
The child must be physically present.
No documents are required for the MBU itself if the demographic data remains the same; however, carrying the original Aadhaar card and the parent's ID is advisable for verification.