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Aadhaar Card update: How to lock, unlock 12-digit UIDAI number

To strengthen the data security and privacy of the Aadhaar Card holder, the UIDAI provides 'lock and unlock your Aadhaar number' feature.

April 22, 2021 / 10:01 AM IST
The UIDAI provides 'lock and unlock your Aadhaar number' feature to strengthen the data security and privacy of the Aadhaar Card holder.

The UIDAI provides 'lock and unlock your Aadhaar number' feature to strengthen the data security and privacy of the Aadhaar Card holder.


The Unique Identification Authority of India (UIDAI) has provided Aadhaar card holders the facility to lock and unlock one's Aadhaar online to prevent incidents of banking and financial frauds.

The 12-digit Unique Identification Authority of India or UIDAI number is getting into the hands of fraudsters who are adept at online banking fraud by fishing out the important data of the Aadhaar card holder is a reason for worry.

The UIDAI provides 'lock and unlock your Aadhaar number' feature to strengthen the data security and privacy of the Aadhaar Card holder. Fraudsters won't be able to authenticate by using the Aadhaar Card number as it requires Virtual ID authentication, which is with the Aadhaar Card holder only once this feature is used. This virtual ID authentication of a locked Aadhaar card prevents misuse of the 12-digit unique UIDAI number.

How to lock Aadhaar card

-Send SMS to 1947 from your registered mobile number to get OTP. The SMS has to be in the format of GETOTP followed by the last four digits of Aadhaar card number.

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-After the SMS, the UIDAI will send 6 digits OTP on your registered mobile number.

-After receiving the six digit OTP, one needs to send another SMS in the text format LOCKUID followed by the last four digits of Aadhaar card number 6 digit OTP.

-Once the SMS is sent, the UIDAI will lock your Aadhaar Card and send a confirmation SMS in reply.

Similarly, one can unlock one's Aadhaar card when they download their new Aadhaar Card.

How to unlock Aadhaar card

-Send SMS at 1947 to receive OTP. SMS text format will be GETOTP followed by the last six digits of your VID or Virtual ID number.

-The UIDAI will send a six digit OPTP in reply to your SMS.

-Send another SMS after the receipt of the OTP. SMS text format will be UNLOCKUID followed by the last six digits of VID or Virtual ID number and six digit OTP.

-After receiving your second SMS, the UIDAI will unlock your Aadhaar Card number by sending the confirmation message in reply to your SMS.

You need to send two SMS for locking your Aadhaar Card once you lose your card. You can unlock your Aadhaar Card by again sending two SMS to the UIDAI at a given 1947 number after you get your Aadhaar Card reissued.
Moneycontrol News
first published: Apr 22, 2021 10:01 am

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