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The UIDAI stands for Unique Identification Authority of India.

It was established by the government of India in January 2009 with an aim to provide a unique identity to the individuals and a platform to digitally authenticate the identity from anywhere across the globe at any given point of time. The agency collects both the biometric and demographic data of Indian residents such as iris scan, photograph, fingerprints. The data will be stored in a centralized place. Aadhaar consists of 12 digit number which is unique in nature. This is the world’s largest project for National Identification Number.

The data centre of the UID is located in Model Township in Manesar, Haryana.

The function of the UIDAI

The UIDAI is supposed to take care of all the policies and plans to implement its unique identification schemes. A few of them are mentioned below:

  • Operating and owning the database of UIDAI.
  • It allows the users to check their aadhar card status using UIDAI’s platform.
  • It takes up the responsibility of maintaining and updating it on a constant basis depending on the applications which are received via both online and offline.
  • To own and operate the database of UID.
  • To implement the UID schemes.
  • To generate and assign UID to the people.
  • Manage and operate all the UID’s life cycle stages.
  • Frame the policies and operation of the UID mechanism.
  • To define the mechanism and interlinking the same with the database of partners.

UIDAI’s Mission

The UIDAI was set up with a mission to:

  • To provide a platform to encourage private agencies and public ones to develop applications linked with aadhaar.
  • To deliver aadhaar to every Indian resident and to have a stringent quality matrix and turnover time.
  • To serve residents efficiently, effectively and equitably by collaborating with the service provider in leveraging the aadhaar.
  • To build a long-term organization which will sustain and carry forward the values and vision of UIDAI.
  • To ensure scalability, resilience and availability of technological infrastructure.
  • To make it as attractive as possible so that the best global expertise of different fields collaborates to give the most valuable insight to UIDAI organization.
  • To collaborate with all the partners and give in a convincing infrastructure to residents of India to authenticate and update their digital identity.

Core Values of UIDAI

The following are the core values of UIDAI


  • Committed to building the nation inclusively.
  • To establish and value a collaborative approach.
  • To make a constant effort for learning and to focus on improving the quality.
  • Value integrity.
  • To strive and serve the residents and other service providers efficiently.
  • To make the organization open and transparent.
  • To consistently drive towards innovation and provide a similar platform to the partners.

Services of UIDAI


  • Checking the status of Aadhaar
  • Location of an enrollment centre
  • Retrieving of UID or Enrollment ID (EID)
  • Download Aadhaar
  • Order re-print

Update Details

  • Update through post
  • Update details online
  • Check ‘update status’
  • Check online address update status
  • Update at an enrollment centre
  • Online address update status
  • View update history

Other Services

  • Paperless e-KYC
  • Locking and unlocking of biometrics
  • Verification of mobile number and e-mail ID
  • Registering of complaints
  • SMS services
  • Verification of Aadhaar number
  • Aadhaar and bank accounts status checking the link 
  • Virtual ID generation or retrieval
  • Check the status of complaints

Aadhaar Act 2016

  • The Aadhaar Act of 2016 is also referred to as Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act of 2016. It was passed on March 25, 2016. 
  •  All the Indian residents can obtain the 12 digit Aadhaar number on submission of the demographic and biometric details. 
  • Once the Aadhaar card is issued to an individual, it cannot be re-issued to anyone else. 
  • Authentication is a procedure through which the biometric and demographic information along with the Aadhaar number will be submitted to the Central Identities Data Repository for verification. 
  • UIDAI is the only authority established by the Central Government to inspect the functions assigned under the Act. 

UIDAI Ecosystem

The enrollment agencies and registrars form a part of the UIDAI system and help individuals to enrol themselves for obtaining Aadhaar card. A Registrar is recognized by the UIDAI and they are responsible for the appointment of enrollment agencies which help to collect the biometric and demographic information.

Indian citizens and even the Non – Resident Indians can enrol for Aadhaar card at several enrollment centres which are set up by enrollment agencies in co-ordination with registrars.

Enrolling and Updating Ecosystems

The UIDAI has a registrar and there are agencies which are under the control of registrar’s who are entitled to enrollment. The registrar is authorized to recognize individuals for enrollment purpose. The enrollment agency authorized by the registrar will collect the biometric and demographic data of the individuals throughout the enrollment process with the help of operators and supervisors.

As per the guidance of the registrars and enrollment agencies, the enrollment centre is set up so that individuals can enrol themselves with UIDAI to secure Aadhaar card. All the types of equipment including fingerprint scanner, iris scanners, camera which will be used during the enrollment process will be used by the enrollment agencies will be certified by UIDAI and STQC and all of them will work in co-ordination to connect to the Application Programming Interphase. All the registrars, enrollers, service providers and so on will co-ordinate amongst themselves to create a healthy environment for them to work accordingly.

Authenticating Ecosystems

A scalable ecosystem has been set up by UIDAI for authentication purpose of the residents and this can be done instantly. The ecosystem authentication of Aadhaar is capable of doing millions of verification's daily and it even provides further enhancing the facility to cope up with the growing demands. The UIDAI has appointed a various number of Authentication User Agencies (AUAs) and Authenticating Service Agencies (ASAs) for several non-government and government-based organizations. As most of the authentication is done through online mode, the UIDAI has established two data centres wherein authentication and other services are done online such as e-KYC can be deployed to ensure optimum availability. Most of the banks and other payment network operation centres have made the aadhaar authentication process possible at micro-ATMs simpler with an outlet to provide branchless banking anywhere in the country based on real-time and with interoperability.

UIDAI Aadhar Download

After applying for Aadhar Card, an applicant can download the Aadhar from UIDAI portal. Below is the method to download, scroll down and make the process complete.

  • Go to the UIDAI Portal
  • Under the drop-down section of My Aadhaar, click on Get Aadhaar
  • On the next page, click on Download Aadhaar
  • Enter your 12 – digit unique Aadhar number, on the required section
  • Select the ‘Masked Aadhaar’ option, if you do not want to show full digits of your respective Aadhaar number.
  • Enter the Captcha Verification Code and Click ‘Send OTP’ option to get the one time password on your registered mobile number.
  • Now enter the OTP which you receive on your mobile number.
  • Complete all the survey and click on the option ‘Verify and Download’ to download the eAadhaar card

UIDAI Financial Division 

The financial division of the UIDAI is accountable for the formulation, outcome and performance of cash management, budget and expenditure and screening the proposal which involves financial implication. The various advising of the financial division of UIDAI includes

  • Advising the EFC or SFC and cabinet on the estimated cost and revising the cost proposal. 
  • Evaluation and appraisal of the proposal of rules and regulations owing to due diligence and operational requirements by the perspective. 
  • Advising on the financial power delegation. 
  • Helping in preparations of budget and to estimate revising them and various grants which are supplementary. 
  • Monitoring the work of pay and accounts office. 
  • Finalization and issuing repost of internal audit to the concerned Regional Office or Tech centre and divisions. 
  • Internal Audit and compliance follow up.
  • Allocating the budget between the regional offices and headquarters functional division. 
  • Internally controlling the procurement manual for due diligence and also the compliance of rules, regulations and guidelines set forth by the Ministry of Finance following various procurement and contracts. 

Aadhaar has 10 digits unique number which identifies the chance of fraudulent activities like theft and prevents misuse of the information. The identification done using Aadhaar will help the government to reach and give the required benefits to its eligible residents.

UIDAI must protect its confidentiality and security concerning safeguarding resident’s information which has been collected at the time of enrollment. The software which is used to collect the information at the time of enrollment has to be encrypted to prevent any sort of leakage in transit. It is also an elaborate and extensive security policy to keep the data safe and integral.

In the case of disclosure of information and security violation penalties will be levied and it will be severe. In case of children, who are aged below 5 years, the biometric and demographic details will not be maintained and even the photograph of the child will not be taken and the Aadhaar card of these kids will be directly linked to their parents UID. Once they reach 5 years, photograph, iris scan and fingerprints will be updated in Aadhaar card and the same will be updated later once the child reaches 15 years. The complete procedure of Aadhaar card enrollment is mentioned on the Aadhaar letter sent with Aadhar card to the residents.

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