Aadhaar Card alert: UIDAI issues warning regarding 12 digit number - check details You can verify the 12 digit Aadhaar number through a number of steps. Know how. Aadhaar Card | File Photo Updated: Jul 10, 2021, 08:05 AM IST The Aadhaar card is one of the most essential documents in today's time. For an Indian, it's no less than an identification document. From government dealings to personal finance, you need this card for everything. The Unique Identification Authority Of India (UIDAI) recently issued a big warning regarding the Aadhaar card stating that all 12 digit numbers should not be considered as Aadhaar, in fact, UIDAI has issued this alert after complaints of fraud.