UIDAI - Unique Identification Authority of India

The Unique Identification Authority of India (UIDAI), which is now recognised as a statutory authority, was set up on 12 July 2016 by the Government of India as per the provisions of the Aadhaar Act 2016. UIDAI is headquartered in New Delhi and has around 8 regional offices in India.

The main objective of UIDAI is to issue a 12-digit unique identification number (UID) to each individual in order to:

  • Do away with duplication of identities
  • Verify and authenticate identity in a cost-effective manner

When was the first Aadhaar issued?

UID number, referred to as Aadhaar, was issued for the first time in 2010 to an individual who was residing at Nandurbar, Maharashtra.

Brief History

Initially, the UIDAI was operating as a part of the Planning Commission, which has now become the NITI Ayog. However, in 2015, after the government revised ‘Allocation of Business Rules’ to attach UIDAI under the aegis of the Electronics and Information Technology Department.

The body is now responsible for the enrollment, authentication and management of all stages in the development of the Aadhaar life cycle.

UIDAI aadhaar
UIDAI aadhaar

Services Provided by UIDAI


  • Locating an enrollment centre
  • Checking status of Aadhaar
  • Downloading Aadhaar
  • Retrieval of UID/ Enrollment ID (EID)
  • Order re-print

Update Details

  • Update details online
  • Update via post
  • Update at enrollment centre
  • Checking of ‘update status’
  • Requesting address validation letter
  • Online address update status
  • View update history

Other Services

  • Verification of Aadhaar number
  • Verification of mobile number and email ID
  • Locking and unlocking of biometrics
  • Aadhaar and bank account link status check
  • Logging of complaints
  • Checking status of complaint
  • Virtual ID generation/retrieval
  • Paperless e-KYC
  • SMS services

You can read more about these services on https://uidai.gov.in/

Vision and Mission


The key vision of the body is to enable people with a UID and a digital platform to be able to authenticate themselves from anywhere and at any point of time.


  • Good governance through the efficient delivery of subsidies
  • Compliance to the Aadhaar Act 2016
  • Create a procedural system of the issuing, authenticating and updating of Aadhaar numbers
  • Enable confidentiality and security of identity-related information

Core Values of UIDAI

  • Good governance
  • Integrity
  • Inclusive nation building
  • Strive to provide good quality services
  • Focus on continuous learning and quality enhancement

Who is part of it?

Dr. Ajay Bhushan Pandey – CEO

Dr. Pandey is the CEO of the Unique Identification Authority of India. He is the administrative head and legal representative of the body. Pandey has served as an IAS officer and has close to 3 decades of experience.

Dr. Anand Deshpande – Part-time Member

Dr.Deshpande is a part-time member of the body. He holds a Ph.D. in Computer Science from the Indiana University in the USA.

UIDAI Regional Offices

Office by region States or Union Territories covered
Mumbai Gujarat, Maharashtra, Goa, Dadar & Nagar Haveli, Daman & Diu
Delhi Madhya Pradesh, Delhi, Uttarakhand and Rajasthan
Bengaluru Kerala, Tamil Naidu, Pondicherry, Lakshadweep and Karnataka
Chandigarh Chandigarh, Jammu & Kashmir, Punjab, Haryana and Himachal Pradesh
Guwahati Tripura and Sikkim, Mizoram, Nagaland, Manipur, Meghalaya, Arunachal Pradesh and Assam
Hyderabad Andaman and Nicobar, Chhattisgarh, Orissa, Telangana, Andhra Pradesh
Lucknow Uttar Pradesh
Ranchi West Bengal, Jharkhand, Bihar

Aadhaar Act 2016

The Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act, 2016, also referred to as the ‘Aadhaar Act 2016’, was passed on 25 March 2016. Given below are the key highlights of the Act:

  • All residents of India are entitled to obtain a 12-digit Aadhaar number by submitting demographic and biometric information
  • Once an Aadhaar number is issued, it cannot be re-issued to anyone else
  • The UIDAI is an Authority established by the Central Government to oversee functions assigned under the Act
  • ‘Authentication’ is a process by which the demographic and biometric information along with the Aadhaar number is submitted to the Central Identities Data Repository for verification

UIDAI Ecosystem

Enrollment agencies and Registrars are part of the system and help enrolling individuals. A Registrar is recognised by the UIDAI and they also appoint Enrollment agencies that help collect biometric and demographic information.

People can enroll for Aadhaar cards at various enrollment centres that are set up by enrollment agencies, in co-ordination with Registrars.


The Unique Identification Authority of India has developed a mobile app known as m-Aadhaar, which can be downloaded from the Google Playstore.

The following services are offered through the app:

  • Profile creation – Aadhaar profile can only be created if you have a registered mobile number
  • You can lock and unlock your biometrics
  • Virtual ID generation

How to create your profile on m-Aadhaar app?

  • Step 1: Key in the 12-digit Aadhaar number
  • Step 2: Ensure mobile data connection is active, key in inputs and click on the ‘Verify’ button
  • Step 3: An OPT will be sent to your registered mobile number

How to generate virtual ID on m-Aadhaar app?

  • Step 1: Choose the ‘VID Generation’ button from the side menu
  • Step 2: Either generate VID or use an already existing one
  • Step 3: You can see the VID on the screen

Grievance Redressal

Any queries or grievances related to Aadhaar enrollment and Aadhaar updation can be addressed through Contact Centres set up by UIDAI.

For complaints:

Complaints can also be lodged through post or through https://pgportal.gov.in/.

This article is intended for informational purposes only. For more information please refer the link(s) provided above or visit https://uidai.gov.in/

Now you can download and print your Aadhaar at any time from UIDIA Govt site, UMANG App, DigiLocker, mAadhaar App and many other ways as per your convenience.


  1. When I link my bank accounts, mutual funds and mobile phones with Aadhaar, will the UIDAI not get this information?
  2. When you link your bank account, mobile phone, mutual fund, etc, UIDAI does not receive the information. The only information it receives is your Aadhaar number and the biometric which you had provided at the time of authentication.

  3. What is ‘Order Aadhaar Reprint’ service?
  4. Order Aadhaar Reprint is a new service launched by UIDAI which allows you to reprint your Aadhaar letter by paying a nominal fee of Rs.50.

  5. What is the password of e-Aadhaar?
  6. The first four letters of your name in capitals and the year of your date of birth will be your password. For example, if your name is Aditya and you were born in the year 1992 then your password will be ADIT1992. However, the first 4 letter may not be required depending on the name. For example, if your name is Lee and you were born in 1995 then the password will be LEE1995.

  7. What is masked Aadhaar?
  8. Mask Aadhaar allows you to mask the first 8 digits of your Aadhaar number upon downloading the e-version of your Aadhaar. This provides more security. When you mask your Aadhaar, the first 8 digits are replaced by xxxxxxxx followed by the last 4 digits of your Aadhaar number.

  9. I need to update my mobile number. How can I do that?
  10. If you wish to update your mobile number, then you can do so by visiting the Permanent Enrolment Centre.

  11. Can I update my address in my local language?
  12. Yes, you can update or correct your address in your local language. The languages in which you can update your address are Assamese, Bengali, English, Gujarati, Hindi, Kannada, Malayalam, Marathi, Odia, Punjabi, Tamil, Telugu and Urdu.

  13. I do not have any document proof of my address. Can I still update my address in my Aadhaar?
  14. Yes, in case you don’t have the necessary documents as proof of your address, you can still update your address in Aadhaar with the help of an Aadhaar verifier by sending an online request for Address Validation Letter. You can update the address with the address of your present residence where the address verifier (family, relative, friends, landlord, etc.) who are allowing you to use their address as proof of residence.

  15. How can I download e-Aadhaar?
  16. You can download e-Aadhaar using any one of the two processes:

    • Using your Enrolment Number: You can download the e-Aadhaar using the 28 digits Enrolment number along with full name and pin code. During the download process, you will receive a One-Time Password (OTP) on your registered mobile phone. You can enter the OTP to download your e-Adhaar. You can also use the mobile application to download the e-Aadhaar using the same process and entering a TOTP which you will receive on your registered mobile number.
    • Using your Aadhaar Number: You can download the e-Aadhaar by entering your 12 digits Aadhaar number along with your full name and pin code. You will receive an OTP on your registered mobile number which upon entering you can download the e-Aadhaar. ou can also use the mobile application to download the e-Aadhaar using the same process and entering a TOTP which you will receive on your registered mobile number.

News About Aadhar

  • UIDAI launches 'Baal Aadhaar Card' for children below the age of 5 years

    UIDAI has launched and issued a new Aadhaar card which comes in a blue colour for all children below the age of 5 years. This new Aadhaar card has been specifically designed to extend the welfare scheme of the government to children below the mentioned age. The news of the ‘Baal Aadhaar Card’ was given by UIDAI through a tweet from the body’s official Twitter account. Any child below the age of 5 years can get this Aadhaar card from the Aadhaar centres.

    The card was primarily launched because UIDAI does not take biometric details of the children who are below the age of 5 years. Only after the child is above the age of 5 years, the biometric authentication can be to get the card updated. This blue Aadhaar card will be issued for children below 5 years old and once they are above the age of 5, authentication will be done.

    The Blue Aadhaar Card can be applied by booking an appointment with the nearest UIDAI Aadhaar card centre. On the date mentioned, the person must visit the centre and fill the Aadhaar Card registration form.

    21 February 2020

  • Social Media Accounts could be linked with Aadhaar – Talks ongoing

    The Ministry of Electronics and IT has gotten in touch with the Unique Identification Authority of India, asking if it is plausible to link the 12-digit identification number with social media accounts. The move is being considered following the Supreme Court getting in touch with the central government regarding the matter. A senior government official said that the Ministry of Electronics and IT had asked the UIDAI’s on linking the social media accounts to Aadhaar numbers.

    According to the official, who remains anonymous, although the Ministry hasn’t formulated a final opinion on the same as yet, a linkage such as this could be very difficult considering the fact that the Aadhaar number can be linked only to government subsidies and government welfare schemes that are funded out of the country’s consolidated fund. In 2018, the Supreme Court of India had restricted the mandatory use of Aadhaar only to PAN, for central government subsidies that are funded from the country’s consolidated fund, and for income tax returns. These changes were later added in the Aadhaar and Other Laws (Amendment) Bill, 2019. The bill was amended recently to allow banking and telecom companies to use Aadhaar for the collection of KYC details, albeit with the consent of customers.

    The official went on to add that even if social media accounts are linked to Aadhaar, there would be no purpose to it. He gave an example, saying that if there is a crime, the government will need the individual’s mobile number and other details that are linked with the person’s Aadhaar, and that goes against the rules of the Aadhaar Act.

    10 October 2019

  • Crop loans to be distributed this year

    The Chief Minister, Ashok Gehlot, mentioned that the government would support the farmers by providing crop loans of over Rs.16,000 crore. By doing this, farmers will be encouraged to establish their own agriculture enterprise and won't be forced to sell produce at a lower price. He further went on to say that the Indian government would help them set up food processing units.

    The process of distributing these loans would now be simple as it is going to be Aadhaar based. This means that farmers can simply withdraw the money from their ATM cards, removing several discrepancies. Over 20 lakh farmers have already applied for the Aadhaar based waiver scheme, and 10 lakh additional farmers would be added to the loan distribution process.

    16 July 2019

  • Aadhaar Card mandatory for sale of subsidised fertiliser

    The government has rolled out a point of sales (PoS) software as part of their DBT 2.0 fertiliser subsidy. The long-term objective of this plan is to ensure that the subsidy goes straight to the farmer and not the company as is currently the practice.

    Unlike most schemes, however, the subsidy to the fertiliser companies is being transferred on the basis of actual sales made by them.

    In fact, the government has also made the Aadhaar card mandatory for sale of fertilisers in order to place a check on any sort of diversion or duplication.

    These PoS machines have been installed in 2.24 lakh retail fertiliser shops in the country.

    16 July 2019

Aadhaar Card Info
Aadhaar Card Process
Link to Mobile Network
Link to Financial Service
Link to Other Utility Product
Aadhaar Enrolment Centers
Articles On Aadhaar Card

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