In India, the national identification number is called the Aadhaar number, which is a unique 12-digit identification number issued by the Unique Identification Authority of India (UIDAI) on behalf of the Government of India. The Aadhaar card project records the biometrics of eligible Indian residents, such as iris scans and fingerprints, on a UIDAI database. The Aadhaar card is the most common national identification card in India and is used as a de facto ID, although there is no official national identity card in India. Other documents that can be used for identification purposes in India include passports, driving licenses, and electoral photo identity cards. The purpose of the Aadhaar number is to verify the identity of Indian residents and prevent fraud and misuse of the system.