FAQs

UIDAI provides authentication facility with different modes such as demographic, biometric (fingerprint , Iris or face) or One Time Password (OTP). Auth Modality shows the mode of authentication used to perform that specific authentication transaction.

An Error Code provide the details/reason for the failure of authentication transaction.  For Error Codes details, resident may refer to Aadhaar Authentication API document published on UIDAI website.

Below are Error Code List -

“100” – Personal information demographic data did not match.

“200” – Personal address demographic data did not match.

“300” – Biometric data did not match.

“310” – Duplicate fingers used.

“311” – Duplicate Irises used.

“312” – FMR and FIR cannot be used in same transaction.

“313” – Single FIR record contains more than one finger.

“314” – Number of FMR/FIR should not exceed 10.

“315” – Number of IIR should not exceed 2.

“316” – Number of FID should not exceed 1.

“330” – Biometrics locked by Aadhaar holder.

“400” – Invalid OTP value.

“402” – “txn” value did not match with “txn” value used in Request OTP API.

“500” – Invalid encryption of session key.

“501” – Invalid certificate identifier in “ci” attribute of “Skey”.

“502” – Invalid encryption of PID.

“503” – Invalid encryption of Hmac.

“504” – Session key re-initiation required due to expiry or key out of sync.

“505” – Synchronized Key usage not allowed for the AUA.

“510” – Invalid Auth XML format.

“511” – Invalid PID XML format.

“512” – Invalid Aadhaar holder consent in “rc” attribute of “Auth”.

“520” – Invalid “tid” value.

“521” – Invalid “dc” code under Meta tag.

“524” – Invalid “mi” code under Meta tag.

“527” – Invalid “mc” code under Meta tag.

“530” – Invalid authenticator code.

“540” – Invalid Auth XML version.

“541” – Invalid PID XML version.

“542” – AUA not authorized for ASA. This error will be returned if AUA and ASA do not have linking in the portal.

“543” – Sub-AUA not associated with “AUA”. This error will be returned if Sub-AUA specified in “sa” attribute is not added as “Sub-AUA” in portal.

“550” – Invalid “Uses” element attributes.

“551” – Invalid “tid” value.

“553” – Registered devices currently not supported. This feature is being implemented in a phased manner.

“554” – Public devices are not allowed to be used.

“555” – rdsId is invalid and not part of certification registry.

“556” – rdsVer is invalid and not part of certification registry.

“557” – dpId is invalid and not part of certification registry.

“558” – Invalid dih.

“559” – Device Certificate has expired.

“560” – DP Master Certificate has expired.

“561” – Request expired (“Pid->ts” value is older than N hours where N is a configured threshold in authentication server).

“562” – Timestamp value is future time (value specified “Pid->ts” is ahead of authentication server time beyond acceptable threshold).

“563” – Duplicate request (this error occurs when exactly same authentication request was re-sent by AUA).

“564” – HMAC Validation failed.

“565” – AUA license has expired.

“566” – Invalid non-decryptable license key.

“567” – Invalid input (this error occurs when unsupported characters were found in Indian language values, “lname” or “lav”).

“568” – Unsupported Language.

“569” – Digital signature verification failed (means that authentication request XML was modified after it was signed).

“570” – Invalid key info in digital signature (this means that certificate used for signing the authentication request is not valid – it is either expired, or does not belong to the AUA or is not created by a well-known Certification Authority).

“571” – PIN requires reset.

“572” – Invalid biometric position.

“573” – Pi usage not allowed as per license.

“574”– Pa usage not allowed as per license.

“575”– Pfa usage not allowed as per license.

“576” - FMR usage not allowed as per license.

“577” – FIR usage not allowed as per license.

“578” – IIR usage not allowed as per license.

“579” – OTP usage not allowed as per license.

“580” – PIN usage not allowed as per license.

“581” – Fuzzy matching usage not allowed as per license.

“582” – Local language usage not allowed as per license.

“586” – FID usage not allowed as per license. This feature is being implemented in a phased manner.

“587” – Name space not allowed.

“588” – Registered device not allowed as per license.

“590” – Public device not allowed as per license.

“710” – Missing “Pi” data as specified in “Uses”.

“720” – Missing “Pa” data as specified in “Uses”.

“721” – Missing “Pfa” data as specified in “Uses”.

“730” – Missing PIN data as specified in “Uses”.

“740” – Missing OTP data as specified in “Uses”.

“800” – Invalid biometric data.

“810” – Missing biometric data as specified in “Uses”.

“811” – Missing biometric data in CIDR for the given Aadhaar number.

“812” – Aadhaar holder has not done “Best Finger Detection”. Application should initiate BFD to help Aadhaar holder identify their best fingers.

“820” – Missing or empty value for “bt” attribute in “Uses” element.

“821” – Invalid value in the “bt” attribute of “Uses” element.

“822” – Invalid value in the “bs” attribute of “Bio” element within “Pid”.

“901” – No authentication data found in the request (this corresponds to a scenario wherein none of the auth data – Demo, Pv, or Bios – is present).

“902” – Invalid “dob” value in the “Pi” element (this corresponds to a scenarios wherein “dob” attribute is not of the format “YYYY” or “YYYYMM-DD”, or the age is not in valid range).

“910” – Invalid “mv” value in the “Pi” element.

“911” – Invalid “mv” value in the “Pfa” element.

“912” – Invalid “ms” value.

“913” – Both “Pa” and “Pfa” are present in the authentication request (Pa and Pfa are mutually exclusive).

“930 to 939” – Technical error that are internal to authentication server.

“940” – Unauthorized ASA channel.

“941” – Unspecified ASA channel.

“950” – OTP store related technical error.

“951” – Biometric lock related technical error.

“980” – Unsupported option.

“995” – Aadhaar suspended by competent authority.

“996” – Aadhaar cancelled (Aadhaar is no in authenticable status).

“997” – Aadhaar suspended (Aadhaar is not in authenticatable status).

“998” – Invalid Aadhaar Number.

“999” – Unknown error.

Aadhaar QR code is Quick Response code digitally signed by UIDAI and used for offline verification of identity. It is present on all forms of Aadhaar like e-Aadhaar, Aadhaar letter, Aadhaar PVC card and mAadhaar. It contains last 4 digits of Aadhaar number, name, address, gender, date of birth and photograph of the Aadhaar number holder. It also contains masked mobile number and email-id of the Aadhaar number holder. 

Aadhaar QR code can be used for verification of identity in offline mode. 'Aadhaar QR Code Scanner' app for smartphones and Windows based QR code scanning application  works in Offline mode and does not require internet for scanning purpose.

Aadhaar QR code can ONLY be read using:
1. mAadhaar app available on Google Play Store and app store
2. Aadhaar QR Scanner app available on Google Play Store and app store
3. Windows based application available on UIDAI official website - https://uidai.gov.in/en/ecosystem/authentication-devices-documents/qr-code-reader.html

Post installation of UIDAI’s QR code reader application, QR code of e-Aadhaar need to be scanned using the physical scanner in line with UIDAI Specifications. The application will display the demographic details of resident once the QR Code is digitally verified using Windows QR code scanner.

Any Aadhaar Holder or any User/Service Agencies like Banks, AUAs, KUAs, Hotels etc can use this facility for offline verification of the data in Aadhaar.

It is a secure sharable document which can be used by any Aadhaar number holder for offline verification of Identification.

A resident desirous of using this facility shall generate his/her digitally signed Offline XML by accessing UIDAI website. The Offline XML will contain Name, Address, Photo, Gender, DOB, hash of registered Mobile Number, hash of registered Email Address and reference id which contains last 4 digits of Aadhaar Number followed by time stamp. It will provide Offline Aadhaar Verification facility to service providers/Offline Verification Seeking Entity (OVSE) without the need to collect or store Aadhaar number.

The process of generating Aadhaar Offline e-KYC is explained below:

• Go to URL https://myaadhaar.uidai.gov.in/offline-ekyc
• Enter ‘Aadhaar Number’ or ‘VID’ and enter mentioned ‘Security Code’ in screen, then click on ‘Send OTP’. The OTP will be sent to the registered Mobile Number for the given Aadhaar number or VID. OTP will be available on m-Aadhaar mobile Application of UIDAI. Enter the OTP received. Enter a Share Code which be the password for the ZIP file and click on ‘Download’ button
• The Zip file containing the digitally signed XML will be downloaded to device wherein the above mentioned steps have been performed.

The Offline Aadhaar XML can also be downloaded from mAadhaar app.

Any Aadhaar number holder who desires to establish his/her identity to any service provider (OVSE) using digitally signed XML downloaded from UIDAI website can be a user of this service. The service provider should have provisions of providing this Aadhaar Paperless Offline e-KYC at their facility and do the offline verification

Residents can share the XML ZIP file along with the Share Code to the service provider as per their mutual convenience.

The process of Aadhaar Offline e-KYC Verification by Service Provider is:

Service Providers shall not share, publish or display either XML or Share Code or its contents with anyone else. Any non-compliance of these actions shall invite actions under Sections 29(2), 29 (3), 29(4) and 37 of The Aadhaar Act, 2016 (as amended) and sub regulation 1A of regulation 25, regulation 14A of The Aadhaar (Authentication and Offline Verification) Regulation, 2021 and regulation 6 and 7 of The Aadhaar (Sharing of Information) Regulation, 2016.

Identity verification can simply be accomplished by providing an identity document like PAN card, Passport etc to the service provider. However, all these documents, which may be used for identification can still be forged and faked which may or may not be possible to verify offline instantaneously. The document verifier has no technological means to verify the authenticity of the document or the information it contains and has to trust the document producer. Whereas, the XML file generated by the Aadhaar number holder using Aadhaar Paperless Offline e-KYC is digitally signed document using UIDAI digital signature. Thus, the service provider can verify the demographic contents of the file and certify it to be authentic when doing the offline verification

Public certificate for Digital signature validation can be downloaded from here.

Biometric Locking/Unlocking is a service that allows an Aadhaar holder to lock and temporarily unlock their biometrics. This facility aims to strengthen privacy and confidentiality of Resident's Biometrics Data.

Fingerprint, iris and Face as a biometric moadlity will be locked and after biometric locking, Aadhaar holder will not be able to perform the Aadhaar authentication using the above mentioned biometric modalities.

Locked Biometrics confirms that Aadhaar holder will not be able to use Biometrics (fingerprints/iris/Face) for authentication, it is a safety feature to stop any kind of biometric authentication.
It also ensures that any entity by any means cannot perform biometric based Aadhaar authentication for that Aadhaar holder.

Once resident enables Biometric Locking system their biometric remains locked till the Aadhaar Holder chose any below mentioned option:

Unlock it (which is temporary )or
Disable the Locking system

The biometric unlock can be done by resident either by visiting UIDAI website, enrolment centre, Aadhaar Seva Kendra(ASK), through m-Aadhaar.

Note: Registered Mobile Number is essential to avail this service. In case your mobile number is not registered with Aadhaar visit the nearest Enrolment Centre/Mobile Update End Point.

Aadhaar number holders who have registered mobile number may lock their biometrics. This facility aims to strengthen privacy and confidentiality of Resident's Biometrics Data

After locking biometrics if a UID is used for invoking any of the Authentication services using a biometric modality (Fingerprint/Iris/Face) a specific error code '330' indicating biometrics are locked will be displayed and the entity will not be able to perform the biometric authentication.

For a resident, security and privacy of personal data is always a primary concern. To strengthen the security of his/her Aadhaar number and to provide control to the resident, UIDAI provide a mechanism of locking and unlocking Aadhaar number (UID).

Resident can lock his or her Aadhaar (UID) via UIDAI website (www.myaadhaar.uidai.gov.in) or through mAadhaar app.

By doing this Resident cannot perform any sort of Authentication using UID, UID Token & VID for Biometrics, Demographic & OTP modality

If resident wants to unlock UID he/she can do so by using latest VID, through UIDAI website or mAadhaar app.
After unlocking Aadhaar (UID), resident can perform authentication using UID, UID Token & VID.

For Locking UID, Resident should have 16 digit VID number and it's a pre-requisite for locking. If resident don't have VID can generate via SMS Service or UIDAI website (www.myaadhaar.uidai.gov.in).

SMS Service. GVID space last 4 or 8 digit of UID. SMS to 1947. Ex- GVID 1234.

Resident may visit UIDAI website (https://resident.uidai.gov.in/aadhaar-lockunlock), Under My Aadhaar tab, Click on Aadhaar Lock & Unlock services. Select UID Lock Radio Button and enter UID Number, Full Name, and Pin Code as in latest details and enter Security code. Click on Send OTP or select TOTP and click on submit. Your UID will be locked successfully.

For Unlocking UID resident should have latest 16 digit VID and if resident forgot 16 digit VID he can retrieve latest VID through SMS services

RVID Space last 4 or 8 digit of UID. SMS to 1947. Ex- RVID 1234

To unlock UID, resident may visit UIDAI website (https://resident.uidai.gov.in/aadhaar-lockunlock), select Unlock radio button, Enter Latest VID and security Code and click on send OTP or select TOTP and click on Submit. Your UID will be unlocked successfully.
Resident may also use Aadhaar lock or unlock service through mAadhaar app.

After Locking UID if resident forgot VID, Resident can make use of SMS service to Retrieve 16 digit VID. Resident will receive VID on his/her register mobile number.

Send SMS to 1947 from Aadhaar Register mobile number,
RVID Space last 4 or 8 digit of UID.

Ex:- RVID 1234

Unique Identification Authority of India (UIDAI) has introduced a service called “Aadhaar Services on SMS” which enables Aadhaar Number holders, who do not have access to internet/resident portal/m-Aadhaar etc. to use various Aadhaar services like Virtual ID generation/retrieval, Aadhaar lock/unlock etc. through SMS.

• Resident can avail Aadhaar Service by sending SMS from Registered Mobile to 1947.
• Resident can perform VID Generation/Retrieval, Lock/Unlock Aadhaar Number etc. by sending an SMS in the given format to 1947 from their registered mobile number.
• For More details on Virtual ID (VID) please visit: https://uidai.gov.in/contact-support/have-any-question/284-faqs/aadhaar-online-services/virtual-id-vid.html

OTP Auhtentication is must for Aadhaar Lock/unlock and Biometric Lock/unlock Function. You don’t need OTP for VID Generation & Retrieval function.

To get OTP send SMS -> GETOTPLAST 4 or 8 DIGITs of Aadhaar Number

Example - GETOTP 1234.

For Locking Aadhaar Number:

Send OTP request as -> GETOTPLAST 4 or 8 DIGITs of Aadhaar Number Then send Locking Request as -> LOCKUIDLast 4 or 8 DIGIT of Aadhaar Number6 DIGIT OTP

You will get a confirmation message for your request. Once it is locked you will not be able to perform any form of Authentication (Biometric, Demographic or OTP) using your Aadhaar Number. However, you can still use your latest Virtual ID for performing Authentication.

For Un-Locking Aadhaar Number you must have your latest Virtual ID.

Send OTP request with last 6 or 10 DIGITs of Virtual ID number as ->

GETOTPLAST 6 or 10 DIGITs Virtual ID

Then send Unlocking Request as -> UNLOCKUIDLAST 6 or 10 DIGIT Virtual ID 6 DIGIT OTP

Please check if your SMS service is working properly. In case of any issue with respect to the SMS not being sent, kindly contact your telecom service provider. It may be a case of bad network or non-functioning SMS service or low Balance etc

Aadhaar letter is laminated paper based document issued to the Aadhaar number holders after enrolment or update.  Aadhaar PVC Card is PVC based durable and easy to carry card with multiple security features.  Aadhaar PVC card is equally valid. 

After receiving order for Aadhaar PVC Card from the Aadhaar number holder, UIDAI  hands over printed Aadhaar Card to DoP within 5 working days (excluding the date of request). Aadhaar PVC Card is delivered via SPEED POST Service of India Post in line with existing delivery norms to the address registered  in aadhaar database. An Aadhaar Number holder may track delivery status using DoP Tracking Services on https://www.indiapost.gov.in/_layouts/15/dop.portal.tracking/trackconsignment.aspx

The different forms of Aadhaar are Aadhaar Letter, Aadhaar PVC card, eAadhaar and mAadhaar. All forms of Aadhaar are equally valid and acceptable.

Yes. 

“Order Aadhaar PVC Card” is an online service launched by UIDAI which facilitates the Aadhaar holder to get their Aadhaar details printed on PVC card by paying nominal charges.

This card contains security features like:
1. Tamper proof QR Code
2. Hologram
3. Micro text
4. Ghost image
5. Issue Date & Print Date
6. Guilloche Pattern
7. Embossed Aadhaar Logo

Charges to be paid are Rs.50/- (Inclusive of GST & speed post charges).

"Aadhaar PVC Card" request can be raised by visiting the UIDAI Official Website (https://www.uidai.gov.in or https://myaadhaar.uidai.gov.in/genricPVC ) or mAadhaar application. 

1. Please Visit https://uidai.gov.in or  https://myaadhaar.uidai.gov.in/genricPVC Click on “Order Aadhaar Card” Service.
2. Enter your 12 digit Aadhaar Number (UID) or 16 digit Virtual Identification Number (VID) or 28 digits Enrollment ID.
3. Enter the security code
4. If you have TOTP, choose option “I have TOTP” by clicking in check box else Click on “Request OTP” button.
5. Enter OTP/TOTP received on registered mobile number.
6. Click on the check box against “Terms and Conditions”. (Note: Click on hyper link to see details).
7. Click on “Submit” Button to complete OTP/TOTP verification.
8. On next screen, preview of the Aadhaar details will appear for verification by resident before placing the order for reprint.
9. Click on “Make payment”. You will be re-directed to Payment Gateway page with payment options as Credit/Debit Card, Net banking and UPI.
10. After successful payment, receipt will get generated having digital signature which can be downloaded by resident in PDF format. Resident will also get the Service Request Number via SMS.
11. Resident can track the status of SRN till dispatch of Aadhaar Card on Check Aadhaar Card Status.
12. SMS containing AWB number will also be sent once dispatched from DoP. Resident can further track delivery status by visiting DoP website.

Please Visit https://uidai.gov.in or https://myaadhaar.uidai.gov.in/genricPVC Click on “Order Aadhaar Card” Service or mAadhaar application
Enter your 12 digit Aadhaar Number (UID) or or 28 digits Enrollment ID.
Enter the security code
Click on check box “If you do not have a registered mobile number, please check in the box”.
Please enter Non-Registered / Alternate Mobile Number. Preview will not be available for residents ordering using non-registered mobile number.
Rest of the steps for ordering remains the same.

Presently, following online payment modes are available for making payment:-

Credit Card
Debit Card
Net Banking
UPI
Paytm

SRN is 14 digits Service Request Number which is generated after raising request for Aadhaar update. It will be generated once you start submitting the request. Till the completion of the transaction 'resume' option shall be available.

Airway Bill Number is the tracking number that is generated by DoP i.e. India Speed Post for the assignment/product that they deliver.

If Aadhaar number holder wants some changes in the details of printed Aadhaar letter or PVC Card, then he/she first need to update their Aadhaar by visiting Enrollment Center or MyAadhaar portal (depending on update) and then raise the request for Aadhaar PVC Card only after update is successful

You may update the documents in your Aadhaar database for better service delivery and accurate Aadhaar based authentication. Therefore, updating recent identity and address documents is in the interest of the Aadhaar number holder.

To update document, you have to submit your Proof of Identity (POI) and Proof of Address (POA).

Some common documents accepted as both POI and POA:
Ration card
Voter identity card
Bhamashah, Domicile Certificate, Resident Certificate, Jan-Aadhaar, MGNREGA/ NREGS Job Card, Labour Card etc.
Indian passport
Passbook with photograph issued by Public Sector Bank along with certificate by branch manager/incharge

Some common documents accepted as POI only:

School leaving certificate / school transfer certificate with photograph
Marksheet/certificate issued by recognised Board of Education or University with photograph
PAN/e-PAN card
CGHS Card
Driving license

Some common documents accepted as POA only:

Electricity, water, gas or telephone/mobile/broadband bill (not more than three months old)
Duly signed and stamped Scheduled Commercial Bank / Post Office passbook with photograph
Duly signed and stamped Scheduled Commercial Bank / Post Office account/credit-card statement (not more than three months old)
Valid rent, lease or leave & licence agreement
Certificate issued in UIDAI Standard Certificate format by designated officers
Property tax receipt (not more than one year old)
Detailed list of supporting documents is available at - List of Supporting Document

Please visit MyAadhaar Portal, and log in using your Aadhaar number and one-time password (OTP) received on your registered mobile number.

List of supporting documents is available at - List of Supporting Document

You can update your address online through myAadhaar portal or by visiting any Aadhaar Enrolment Centre by enrolling with valid POA document.

You can update any demographic details in Aadhaar by visiting any Aadhaar Enrolment centre

Please go to Bhuvan Aadhaar Portal
For locating nearby Aadhaar centres, click on the ‘Centres Nearby’ tab. Enter your location details to view nearby Aadhaar centres.
For locating the Aadhaar centres within your PIN code area, click on the ‘Search by PIN Code’ tab. Enter your area PIN code to view Aadhaar centres in that area.

For submission of documents at an Aadhaar centre, the applicable charge is Rs. 50.
Submission of documents may also be done through myAadhaar portal.

Aadhaar number holders are suggested to update documents in Aadhaar at least once in 10 years. Once you receive any communication in this regard, it is suggested to update the documents at an early date.