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Blue Aadhaar (Bal Aadhaar)
Blue Aadhaar, officially Bal Aadhaar, is the Aadhaar issued to children under five. It is printed in blue to set it apart, and it differs from an adult’s card in one key way: it holds no biometrics. Because a small child’s fingerprints and iris are still forming, only a photograph and demographic details are recorded. The blue colour is really a reminder to parents that biometrics are due once the child grows up. The number itself is permanent and stays with the child for life; what changes is that biometric data gets added later. So Bal Aadhaar is best considered the first stage of a lifelong Aadhaar, not a separate card.
Table of Content
Eligibility for Blue Aadhaar
Any child under five years old who is a resident of India can be enrolled for a Blue Aadhaar, including newborns. There is no minimum age a baby can be enrolled soon after birth. The child does not need their own identity or address proof; instead, enrollment rides on a parent’s Aadhaar and the child’s birth certificate. The parent’s address becomes the child’s address on record. Once the child turns five, the Blue Aadhaar effectively lapses until the first biometric update is done, which is why eligibility is tied so closely to that under-five window.
Documents Required for Child Aadhaar
Enrolment is document-light, since the child gives no biometrics. You need the child’s birth certificate as proof of identity and date of birth, and at least one parent’s Aadhaar, which also supplies the address. A point that trips families up: for any child born on or after 1 October 2023, the birth certificate is mandatory a hospital discharge slip or vaccination card is no longer enough. A relationship link between child and parent is needed, which the birth certificate usually provides. Keep the parent’s mobile number handy, as UIDAI sends update reminders there.
Step-by-Step: Apply for Blue Aadhaar (2026)
- Enrollment is done in person because the child is photographed at the centre.
- Book a slot or visit an Aadhaar Seva Kendra, found on the Bhuvan Aadhaar portal.
- Carry the child’s birth certificate and a parent’s Aadhaar.
- Fill the enrollment form with the child’s details and the parent as the linked guardian.
- Let the centre photograph the child; no fingerprints or iris are taken.
- Collect the acknowledgement slip and track it, then download the eAadhaar once issued.
New enrolment for a child is free. You can later download the child’s eAadhaar from the myAadhaar portal, which is valid just like the printed blue card.
Mandatory Biometric Update at Age 5
When the child turns five, you must complete the first Mandatory Biometric Update (MBU-1). For the first time, the centre records the child’s ten fingerprints, both iris scans, and a fresh photograph, converting the Blue Aadhaar into a standard one while keeping the same number. UIDAI treats MBU-1 as a fresh enrolment in processing terms. This step is essential: without it, the Aadhaar can become inactive, causing problems with school admissions and scholarships. Under a current UIDAI relief, this update is free for children in the 5-to-17 band for a limited period, so it is worth doing promptly.
Mandatory Biometric Update at Age 15
A second update, MBU-2, is required when the child turns fifteen. By this age fingerprints and iris patterns have matured, so capturing them again gives a reliable adult record. As with MBU 1, the centre takes fresh fingerprints, iris scans, and a photograph. After this update, no further biometric updates are mandatory for the rest of the person’s life. Skipping it risks the same deactivation problems at a critical time just when the teenager needs Aadhaar for board exams, college, and a first bank account. The general mechanics of a biometric update are covered in our dedicated biometric-update guide.
Is Blue Aadhaar Valid as ID Proof
Yes. A Blue Aadhaar is a valid proof of identity and address for a child, accepted for school admissions, passport applications, and government schemes, and the child’s eAadhaar carries the same validity as the printed card. It can also be used to open a minor’s bank account, usually operated by a parent or guardian. Its one limitation is that, without biometrics, it cannot be used for fingerprint or iris authentication verification relies on the demographic details and photo instead. And remember it must be kept active through the biometric updates at five and fifteen, or its validity is at risk.
Blue Aadhaar at a glance:
| Detail | What to know |
| Who | Children under 5 (Bal Aadhaar) |
| Biometrics | None photo + demographics only |
| Documents | Child’s birth certificate + a parent’s Aadhaar |
| Enrolment fee | Free |
| Updates | MBU-1 at age 5, MBU-2 at age 15 (in person) |
| Update fee | Free for ages 5–17 under current waiver (time-bound) |
Source: UIDAI, uidai.gov.in. Child MBU fee waiver is time-bound verify the end date at publish.
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Reviewed ByLast Updated: 12th August 2026
Frequently Asked Questions (FAQs)
What is Blue Aadhaar card?
Blue Aadhaar, or Bal Aadhaar, is the Aadhaar issued to children under five. Printed in blue, it contains only a photograph and demographic details, with no fingerprints or iris, because a young child’s biometrics are still developing. The 12-digit number is permanent; biometrics are added later through mandatory updates. It is the child’s first stage of a lifelong Aadhaar, not a separate card.
Who is eligible for Blue Aadhaar?
Any resident child under five years old, including newborns, can be enrolled for a Blue Aadhaar. There is no minimum age. The child needs no identity or address proof of their own; enrolment uses the child’s birth certificate and a parent’s Aadhaar, with the parent’s address recorded as the child’s. After age five, the first biometric update is needed to keep it valid.
How to apply for Blue Aadhaar for child?
Visit an Aadhaar Seva Kendra with the child’s birth certificate and a parent’s Aadhaar. Fill the enrolment form, listing the parent as guardian, and let the centre photograph the child no fingerprints or iris are taken under five. Collect the acknowledgement slip to track it, then download the eAadhaar once issued. Enrolment is free, and booking a slot first saves waiting.
What documents needed for child Aadhaar?
You need the child’s birth certificate as proof of identity and date of birth, plus at least one parent’s Aadhaar, which supplies the address. For children born on or after 1 October 2023, the birth certificate is mandatory a hospital discharge slip is no longer accepted. No biometric or separate address proof is required from the child for the under-five Blue Aadhaar.
How to upgrade Blue Aadhaar after 5 years?
Take the child to an Aadhaar centre for the first Mandatory Biometric Update (MBU-1) once they turn five. The centre records fingerprints, iris scans, and a fresh photo, converting the Blue Aadhaar into a standard Aadhaar while keeping the same number. It must be done in person. Under the current UIDAI waiver, this update is free for children aged 5 to 17 for a limited window.
Is Blue Aadhaar valid as ID proof?
Yes. A Blue Aadhaar is valid proof of identity and address for a child, accepted for school admissions, passport applications, and government schemes, and the eAadhaar is as valid as the printed card. It cannot be used for fingerprint or iris authentication, since it holds no biometrics, but its demographic details and photo serve as proof. Keep it active through the mandatory updates.
Can Blue Aadhaar be linked to bank?
Yes. A Blue Aadhaar can be used to open and link a minor’s bank account, which a parent or guardian operates until the child is old enough. Many banks use it for the child’s KYC. Because it has no biometrics, linking and verification rely on the demographic details rather than fingerprint authentication. The parent’s own KYC is generally also part of opening a minor’s account.
What changes when Blue Aadhaar is upgraded?
At the age-five update, biometrics fingerprints, iris, and a fresh photo are added for the first time, and the card stops being blue, becoming a standard Aadhaar. The number does not change. A second update at fifteen refreshes the now-matured biometrics. After that, the Aadhaar is fully biometric and needs no further mandatory updates, functioning exactly like any adult’s.
