Over 100,000 Schools have been saturated by UIDAI’s special drive on mandatory biometric update in Aadhaar; millions of children benefited

1. At a Glance

UIDAI's Mandatory Biometric Update (MBU) is a statutory requirement under the Aadhaar framework for children to re-capture fingerprints, iris and photograph at ages 5 and 15, since juvenile biometrics are not stable. [S1][S2]
A mission-mode school-saturation drive, launched September 2025, has covered >1.03 lakh schools and updated biometrics of ~1.2 crore children by March 2026. [S3][S4]
Examinable because it links digital identity, child welfare, e-governance (DPI), and Centre-State coordination via the UDISE+ integration. [S4]

2. Why in the News

3 March 2026 PIB release: UIDAI announced saturation of >1,03,000 schools and completion of ~1.2 crore school-based MBUs in six months. [S3]
Drive follows a fee waiver for the 7–15 age group from 1 October 2025, valid for one year, expected to benefit ~6 crore children. [S1][S5]

3. Background & Evolution

2009: UIDAI established by executive notification under the Planning Commission. [S6]
2016: Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act, 2016 gave statutory backing; UIDAI placed under MeitY. [S6]
Biometric rules: children <5 enrolled without fingerprint/iris (Bal Aadhaar); MBU-1 at age 5, MBU-2 at age 15. [S2]
Sept 2025: UIDAI launched school-based MBU drive after technological integration with UDISE+ (Unified District Information System for Education Plus). [S4]
1 Oct 2025: Fee for MBU-1 (7–15 age) waived for one year; earlier ₹100 charge after age 7. [S1][S2]

4. Core Static Facts

Parent Ministry: Ministry of Electronics & Information Technology (MeitY). [S6]
Implementing body: Unique Identification Authority of India (UIDAI) — statutory body under Section 11, Aadhaar Act 2016. [S6]
Partner platform: UDISE+ under Ministry of Education. [S4]
MBU ages: 5 years (MBU-1) and 15 years (MBU-2). [S2]
Penalty: Aadhaar may be deactivated if MBU not done after age 7. [S2]
Fee waiver window: 1 Oct 2025 – 30 Sep 2026; applies to age 7–15. [S1]
Target beneficiary universe: ~6 crore children (7–15). [S1]
Progress: 1 crore MBUs across 83,000 schools by earlier milestone; >1.03 lakh schools / ~1.2 crore children by March 2026. [S3][S4]

5. Multi-Dimensional Analysis

Administrative / Governance - Federal coordination: UIDAI Regional Offices + State education departments + schools. [S3] - Uses UDISE+ API integration for school-targeting — example of inter-operable Digital Public Infrastructure (DPI). [S4]

Social - Removes parental cost barrier and travel friction by bringing enrolment into school campuses, aiding poor and rural households disproportionately. [S1][S3] - Prevents Aadhaar deactivation that would cut children off from PM-POSHAN, scholarships, DBT linked schemes. [S2]

Legal / Constitutional - Statutory basis: Aadhaar Act, 2016; upheld with restrictions in Justice K.S. Puttaswamy v. Union of India (2018) which limited Aadhaar mandate to subsidies under Article 7. (general legal context) - Data captured: fingerprints, iris, photo — sensitive personal data under DPDP Act, 2023 regime.

Scientific / Technological - Biometrics of under-5s not viable; re-capture at 5 & 15 reflects biometric maturation science. [S2] - UIDAI also using behavioural insights ("nudges") to increase MBU uptake. [S7]

Ethical - Concerns over consent of minors, data security, and risk of exclusion errors if biometrics fail.

6. Recent Developments (last 12-18 months)

Sept 2025: School-MBU drive launched post UDISE+ integration. [S4]
1 Oct 2025: Free MBU for ages 7–15 notified for one year. [S1]
Feb 2026: 1 crore school MBUs across 83,000 schools milestone. [S4]
3 Mar 2026: 1.03 lakh schools saturated; 1.2 crore children covered. [S3]
Parallel scheme: MBU at Post Offices free of cost for children. [S8]

7. Prelims Hooks

UIDAI is a statutory body under Section 11 of the Aadhaar Act, 2016, under MeitY. [S6]
Mandatory Biometric Updates required at ages 5 and 15. [S2]
Fingerprint/iris not captured below age 5. [S2]
MBU fee waiver effective 1 October 2025 for one year, age group 7–15. [S1]
Earlier MBU fee after age 7 was ₹100. [S2]
Non-update after age 7 can lead to Aadhaar deactivation. [S2]
School drive integrated with UDISE+ (Ministry of Education platform). [S4]
>1,03,000 schools saturated; ~1.2 crore (12 million) children updated as on 3 Mar 2026. [S3]
Earlier milestone: 1 crore MBUs across 83,000 schools. [S4]
Target universe of waiver: ~6 crore children. [S1]
UIDAI uses behavioural insights / nudges to increase MBU adoption. [S7]
Aadhaar Act passed in 2016; UIDAI created by executive resolution in 2009. [S6]

8. Mains Relevance

GS-II — Government policies and interventions for development; e-Governance; welfare of children.
GS-III — Awareness in IT, role of Digital Public Infrastructure; data protection.
Sample stems: 1. "Convergence of Aadhaar with sectoral databases like UDISE+ exemplifies India's Digital Public Infrastructure approach. Discuss with reference to UIDAI's school MBU drive." (GS-II/III) 2. "Examine the legal and ethical issues in collecting and updating biometric data of minors under the Aadhaar Act, 2016." (GS-II) 3. "Aadhaar saturation among children is as much an exclusion-prevention exercise as an identity exercise. Comment." (GS-II)

9. Related Topics to Study Next

Aadhaar Act, 2016 & Puttaswamy judgment (2017/18) — statutory & rights backbone.
Digital Personal Data Protection Act, 2023 — governs minors' data.
UDISE+ — education MIS used for targeting.
PM-POSHAN, DBT, scholarships — schemes that hinge on active Aadhaar.
JAM Trinity (Jan Dhan-Aadhaar-Mobile) — DPI architecture.
Bal Aadhaar (blue Aadhaar) — under-5 enrolment.
India Stack / DigiLocker / DPI exports — broader frame.
NCPCR & child rights — consent and data of minors.

10. Common Errors / Trap Areas

Confusing UIDAI's parent ministry: it is MeitY, not Ministry of Home Affairs or Ministry of Education. [S6]
MBU ages are 5 and 15 — not 7 and 15; 7 is the deactivation-risk threshold, not the update age. [S2]
The fee waiver covers 7–15 only; 5–7 update was already free. [S1][S2]
UIDAI was set up in 2009 but became statutory only in 2016 via the Aadhaar Act.
School drive uses UDISE+ (Education Ministry), not NCERT or Samagra Shiksha portal. [S4]

11. Sources

[S1] UIDAI Waives Charges for Aadhaar Biometric Updates for Children Aged 7–15 — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2174841 — (tier 1)
[S2] UIDAI Urges Parents and Guardians to Update Children's Aadhaar Biometrics — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2144893 — (tier 1)
[S3] Over 100,000 Schools saturated by UIDAI's special MBU drive — https://www.pib.gov.in/PressReleseDetailm.aspx?PRID=2234902 — (tier 1)
[S4] One Crore MBUs for schoolchildren completed by UIDAI — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2225104 — (tier 1)
[S5] UIDAI Waives Charges PDF — https://uidai.gov.in/images/UIDAI_Waives_Charges_for_Aadhaar_Biometric_Updates_for_Children_Aged_715.pdf — (tier 1)
[S6] UIDAI page, MeitY — https://www.meity.gov.in/uidai — (tier 1)
[S7] UIDAI to use behavioural insights for MBU adoption — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2188888 — (tier 1)
[S8] Aadhaar New Enrolment and MBU at Post Offices Free — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2212058 — (tier 1)