Aadhaar

Sun, 17 May 2026 00:00:00 +0000

Aadhaar is a 12-digit unique identification number issued to Indian residents by the Unique Identification Authority of India (UIDAI) , a statutory authority constituted under the Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act, 2016, commonly called the Aadhaar Act, 2016. Aadhaar is the world’s largest biometric identity system: as of 2026, over 1.4 billion Aadhaar numbers have been issued (more than 99 per cent of the eligible Indian resident population), with the enrolment infrastructure operated through enrolment agencies and Common Service Centres across India. The Aadhaar ecosystem includes the Aadhaar e-KYC API, the Aadhaar-based e-sign framework, Aadhaar Authentication services, and AAdhaar offline-XML pathway, which together form the operational backbone for digital identity verification across Indian financial services, government welfare delivery, telecom, and other regulated sectors.

Unique Identification Authority of India (UIDAI)

Sun, 17 May 2026 00:00:00 +0000

The Unique Identification Authority of India (UIDAI) is the statutory authority constituted under the Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act, 2016 (commonly the Aadhaar Act 2016), headquartered in New Delhi, that issues Aadhaar , the 12-digit unique identification number, to Indian residents and operates the Central Identities Data Repository (CIDR), the centralised database of all Aadhaar records. As of 2026, UIDAI has issued over 1.4 billion Aadhaar numbers (more than 99 per cent of the eligible Indian resident population), making it the operator of the world’s largest biometric identity system.

Identity Infrastructure on WebNotes

Aadhaar

Unique Identification Authority of India (UIDAI)