Unique Identification Authority of India – UIDAI

The Unique Identification Authority of India has its headquarters in New Delhi and was established in January 2009. UIDAI was functioning as an attached office of the then Planning Commission (now NITI Aayog) vide its Gazette Notification No.-A-43011/02/2009-Admn.I) dated 28th January, 2009. The Unique Identification Authority of India (UIDAI) became a statutory authority under the provisions of the Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act, 2016 (“Aadhaar Act 2016”) on 12 July 2016 by the Government of India, under the Ministry of Electronics and Information Technology (MeitY).

Their vision is to provide a unique identity and a digital platform anywhere and at any time. Aadhaar Authentication literally means the process by the Aadhaar number along with the demographic information or biometric information of Aadhaar number holder is submitted to the Central Identities Data Repository (CIDR). They then verify the correctness or lack of thereof, on the basis of information available with it.

UIDAI's mission is to develop policy, procedure, and systems for Aadhaar holders for updating and authenticating their digital identity. It also aims to ensure security and confidentiality of identity information and authentication records of individuals. The UIDAI issues a 12 digit unique number called Aadhaar and is the world's largest project for National Identification Number. The first UID number was issued on 29 September 2010 to a resident of Nandurbar, Maharashtra. The Authority has so far issued more than 120 crore Aadhaar numbers to the residents of India. UIDAI is headed by Shri J Satyanarayana as the part-time Chairman of UIDAI and Dr. Anand Deshpande as part-time member and Dr Ajay Bhushan Panday as the Chief Executive Officer.

Services Provided by UIDAI

The main objective of UIDAI is to provide Aadhar number to all the residents in India with a portable which can be authenticated anytime anywhere. It provides a platform that helps the service providers to electronically authenticate the identity of residents in a safe, quick and hassle-free manner. You can register yourself online or at any of the enrolment centres and also check the status of his/her Aadhar, update his/her UIDAI Aadhaar data online at the official website.

Following are the services provided by UIDAI:

Aadhar Enrolment Services at UIDAI

  • Get Aadhar Number on Mobile
  • Check Aadhar Status
  • Enrolment & Update Centres in Banks & Post offices
  • Retrieve Lost UID/EID
  • Locate Enrolment & Update Centres
  • Download Aadhar

Aadhaar Update at UIDAI

  • UIDAI Address Update Request (Online)
  • Update at Enrolment Centre
  • Check UIDAI Aadhar Status - Updates done at Enrolment Centre/ECMP
  • Check UIDAI Aadhar Status - Updates done Online

To verify Aadhaar Number

Verifying Aadhar number will enable the Aadhar card holders and service providers to verify if the Aadhaar number is valid and not deactivated.

Verify email/mobile number

Aadhar card holders registered number is vital to access the online services of Aadhar online services. However, the residents can verify their already registered mobile number and email address.

Check Aadhaar and Bank account linking status

All Aadhar card holders can check if their Aadhaar is linked to their bank account. The government has mandated this rule. The status is fetched from the NPCI server and UIDAI shall not be responsible or liable for the correctness of the displayed status.

Lock/Unlock Biometrics

People who hold Aadhar card numbers can secure their biometric authentication by locking their biometrics. Once their biometrics is locked the same cannot be used by anyone for authentication.

Aadhaar Authentication History

The Aadhar number holders can view details of the Aadhar Authentication they have done.

Virtual Line Generator

The Aadhar card holders can generate their 16 digit virtual ID.

Aadhaar Enrolment Services at UIDAI

Enrolment Centres in Banks & Post Offices

The Ministry of Finance has allotted Rs. 200 crore to set up Aadhaar enrolment centres. As per the UIDAI, there are over 6500 post office which provide Aadhaar enrolment and update service. In case you have to locate Aadhaar enrolment centres in bank and post office, one can do that by visiting appointments.uidai.gov.in/easearch.aspx or uidai.gov.in

Post which, you can search banks and post offices as per their state, pin-code, and search box. The government has made it very simple for people to locate the enrolment centres, thus making Aadhaar Enrolment a hassle-free process.

Locate Enrolment & Update Centres

To locate an enrolment centre one can visit the below online site i.e.: appointments.uidai.gov.in/centersearch.aspx or uidai.gov.in One can select state, pin code and search box to locate their enrolment centre.

Check Aadhar Status

To check the Aadhar status, one has to visit resident.uidai.gov.in/check-aadhaar-status and follow the below guidelines:

  • You will require your EID (Enrolment ID) to check if your Aadhaar is generated.
  • The acknowledgment slip contains 14 digit enrolment number (1234/12345/12345) and the 14 digit date and time (dd/mm/yyyy hh:mm:ss) of enrolment. These 28 digits together form your Enrolment ID (EID).
  • If you have lost your EID, you can Retrieve Lost EID/UID. (resident.uidai.gov.in/web/resident/find-uid-eid) For this, you will require your registered mobile number which you had declared at the time of your Enrolment.

Download Aadhaar

You can download E-Aadhaar by using your Aadhaar, EID or VID from the below link. eaadhaar.uidai.gov.in/#/ For example: If you have an enrolment ID, you can enter all your personal details like:

  • Enrolment ID/Aadhaar Number/VID
  • Full name
  • Pin code
  • Security code and request for an OTP. Post which you can login and download the E-Aadhaar.

Get Aadhar Number on Mobile

To get Aadhar number on your mobile phone, you will have to visit the below link resident.uidai.gov.in/web/resident/get-aadhaar-no Post which, one can follow the below guidelines and get the Aadhar number on your mobile phone.

  • Get enrolled at an Aadhaar Enrolment Centre to get your Aadhaar.
  • Once you have enrolled, check your Aadhaar Status (resident.uidai.gov.in/web/resident/check-aadhaar-status) to know if your Aadhaar is generated.
  • You will require EID (Enrolment ID) and your Registered Mobile number to get your Aadhaar on your mobile
  • Enrolment ID (EID): The top of your acknowledgement slip contains14 digit enrolment number (1234/12345/12345), and the 14 digit date and time (dd/mm/yyyy hh:mm:ss) of enrolment. These 28 digits together form your Enrolment ID (EID).
  • Registered Mobile Number is essential to avail Aadhaar Online services.
  • In case your mobile number is not registered with your Aadhaar, visit the nearest Permanent Enrolment Centre (PAC). Below is the link for permanent enrolment centre. appointments.uidai.gov.in/easearch.aspx

Retrieve for Lost UID/EID

To retrieve your lost UID/ EID, one has to visit the below link and follow the guidelines: resident.uidai.gov.in/find-uid-eid

  • Your registered Mobile Number / Email which you had provided at the time of enrolment is mandatory to retrieve your lost UID / EID.
  • You have not registered your Mobile number while enrolling for Aadhaar. You are required to visit a Permanent Enrolment Centre to get it registered.
  • If you have changed your mobile number or you wish to change the registered Email you are required to get it updated in your Aadhaar as soon as possible.
  • You can also Verify Email/Mobile number to know if it is registered or not.

Aadhaar Update at UIDAI

The UIDAI has an Aadhaar self-update portal and one can log on to the website mentioned below to update address, documents, etc. in just 4 easy steps:


1) Login with Aadhaar2

2) Address Update Request

3) Upload Documents

4) And Select BPO Service Provider and submit request.

FAQ's on the self-update portal – Aadhaar

1) Who can use this portal?

Any resident with a registered mobile number can use this portal. Note: Registered Mobile number is mandatory to receive a password for login.

2) What all information can be updated through this portal?

Address and other Aadhaar related details can be updated on this portal.

3) What are the documents required to be submitted along with address update request?

A scanned copy of original Proof of Address (PoA)/self-signed (self-attested) copy of PoA documents for update/ correction.

Aadhaar Update at Enrolment Centre

To update at enrolment centre one can visit the below website:


All you have to do is, search your Aadhaar enrolment centre by selecting state, pin code and search box and you may get all information related your Aadhaar enrolment.

Check UIDAI Aadhaar Status - Update done at Enrolment Centre/ECMP

To check if the update is done at enrolment centre, one has visit the below given link


Check UIDAI Aadhaar Status - Updates done Online

To check your UIDAI status online, one has to visit the link given below and enter few details like:


  • Aadhaar number
  • URN number
  • SRN number
  • Random text verification

Post which you can check your or update your status online.

Aadhaar Services at UIDAI

Verify Aadhar Number

To verify your Aadhaar, you can visit the www.uidai.gov.in Or resident.uidai.gov.in/aadhaarverification (direct link – to verify Aadhaar number on UIDAI's website). You then need to enter the 12 digit Aadhaar number in the relevant box to verify if your Aadhaar number is valid or not deactivated.

Verify Email/Mobile Number

To verify your email address or mobile number, one can visit www.uidai.gov.in Or resident.uidai.gov.in/verify-email-mobile (direct link to UIDAI's website to verify email address and mobile number)

However, there are 2 things one needs to keep in mind while verifying the email address and mobile number i.e.:

1) One can use this feature to verify the email address or mobile number that has been declared during enrolment or latest successful processed update request, whichever is later.

2) Registered Mobile Number is essential to avail Aadhaar Online services. In case your mobile number is not registered with your Aadhaar, you will need to visit the nearest Permanent Aadhaar Centre (PAC).


You can visit the link below to lock and temporarily unlock their biometrics. This system was made to protect your privacy and confidentiality of Resident's Biometrics Data.


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

Check Aadhaar & Bank Account Linking Status

You can visit resident.uidai.gov.in/bank-mapper to check your Aadhar card and bank linking status. All you have to do is follow two simple steps i.e.:

  • Enter UID/VID ( 12 digits and 16 digits no )
  • Enter security code


  • Aadhar Linking status is fetched from NPCI Server.

  • Under any circumstance, UIDAI shall not be responsible or liable for the correctness of the displayed status. Further, UIDAI is not storing any information fetched from NPCI server.

Aadhaar Authentication History

The Aadhaar Authentication feature is used to view the Authentication details. You can visit resident.uidai.gov.in/notification-aadhaar and fetch your Aadhaar authentication data. You need to follow the below steps to do so:

  • Enter UID/ VID number

  • Enter security code

Function of the UIDAI

The Functions of UIDAI are as under:

  • To issue Aadhar Card to all Indian citizens.
  • To utilize the help of service providers to with the development, design, and deployment of Aadhaar applications.
  • To establish firm standards with regards to the enrolment of residents as well as the authentication process.
  • To improve and enhance the objective of UIDAI by providing assistance.

Mission of UIDAI

1) To provide good governance, efficient, transparent and targeted delivery of subsidies, benefits and services, the expenditure for which is incurred from the Consolidated Fund of India, to individuals residing in India through assigning of unique identity numbers.

2) To develop policy, procedure, and system for issuing Aadhar number to individuals, who request for same by submitting their demographic information and biometric information by undergoing the process of enrolment.

3) To develop policy, procedure, and systems for Aadhaar holders for updating and authenticating their digital identity.

4) To ensure availability, scalability, and resilience of the technology infrastructure.

5) To build a long term sustainable organization to carry forward the vision and values of the UIDAI.

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The UIDAI has all my data including biometrics, bank account, PAN Etc. Will it be used to track my activities?

  • Absolutely not. The UIDAI database has very little information that one gives at the time of enrolment or updation.
  • This includes your name, address, gender, date of birth, ten fingerprints, two IRIS scans, facial photograph ○ Mobile number and email ID.
  • Also, Section 32(3) of the Aadhaar Act 2016 specifically prohibits UIDAI from controlling, collecting, keeping or maintaining any information about the purpose of authentication either by itself or through any entity.

When I link my bank accounts, shares, mutual funds and mobile phones with Aadhaar, will the UIDAI not get this information?

Absolutely not, because when you give Aadhaar number to your banks, mutual fund companies, mobile phone companies, they only send Aadhaar number, your biometrics (given at the time authentication) and your name etc. to UIDAI for verification for your identity. They do not send your bank account details to UIDAI

Do NRIs need Aadhaar for banking, mobile, PAN and other services?

No, Aadhaar is only for residents of India. According to the Aadhaar Act, 2016, every resident can apply for an Aadhar number. A resident is an individual who has been living in the country for 182 days or more in the year immediately preceding the date of application for enrolment.

Therefore, if a Non-Resident Indian (NRI) has lived in the country for 182 days or more in the last one year right before the date of application for enrolment, then the NRI can apply for an Aadhar card. However, an NRI should hold an Aadhar Card this help him in filing his taxes and getting PAN Card and other related services.

Some agencies are not accepting e-Aadhaar. They insist on original Aadhaar. Why?

E- Aadhaar is as legally valid as original Aadhaar issued by UIDAI. Both should be acceptable by all Agencies. However, in case anyone refuses to accept downloaded e-Aadhaar, the Aadhaar holder can lodge complaints with higher authorities of those departments/ agencies. All agencies should accept e-Aadhaar/ m-Aadhaar. They are equally valid.