Glossary
Aadhaar is a 12 digit individual identification number issued by the Unique Identification Authority of India on behalf of the Government of India.
Aadhaar Holder is an individual who holds an Aadhaar Number.
Aadhaar Number is the unique identification number issued to a an Aadhaar number holder by UIDAI
Aadhaar Enabled Services is services provided by an Authentication User Agency to Aadhaar Holder, using the Aadhaar Authentication Services of UIDAI.
Aadhaar Authentication Services is the authentication services provided by UIDAI and used by Authentication User Agency where the personal identity information of / data of an Aadhaar-holder (who is a beneficiary, customer, employee or associate of the Authentication User Agency is matched with their personal identity information / data that is stored in the UIDAI’s Central Identity Data Repository in order to provide Aadhaar enabled services to such Aadhaar holder.
Aadhaar Seeding means linking Aadhaar holder’s Unique 12 digit AADHAAR number with their Personal Identification Documents or Benefit Cards such as:
- Scholarships
- Pension ID
- MNREGA Job Card
- LPG Consumer ID
Authentication means the process of verifying the UID number of a an Aadhaar number holder with reference to his biometrics.
Unique Identification Authority of India (UIDAI)
Aadhaar Authentication Services is the authentication services provided by UIDAI and used by Authentication User Agency where the personal identity information of / data of an Aadhaar-holder (who is a beneficiary, customer, employee or associate of the Authentication User Agency is matched with their personal identity information / data that is stored in the UIDAI’s Central Identity Data Repository in order to provide Aadhaar enabled services to such Aadhaar holder.
An application programming interface (API) specifies how some software components should interact with each other.
An organization or an entity providing secure leased line connectivity to UIDAI’s data centres for transmitting authentication requests from various AUAs.
An organization or an entity using Aadhaar authentication as part of its applications to provide services to Aadhaar number holders. Example: Bank
Authentication Data Packet is a data packet which has been created based on pre-defined protocol (data elements, order of data elements, etc), prescribed by UIDAI from time to time and which contains Personal Identity Data (PID) collected from Aadhaar Holders for the purpose of Aadhaar Authentication.
Authentication Device is a terminal or device from where the Authentication User Agency carries out its service/business functions and interacts with Aadhaar Holders, by seeking authentication of Aadhaar Holders identity to enable the Authentication User Agency’s business function.
Automated Teller Machine
Business Correspondent is a term for banking channel for rural India.
Biometric Failure to Enrol
Best Finger Detection means identification of the best finger(s) to improve authentication accuracy and hence be more inclusive in supporting Aadhaar authentication across all sections of society.
Below Poverty Line
Biometric Information shall mean face photograph, ten finger prints and iris image of an individual seeking to enrol, captured by UIDAI, as a part of the enrolment process for issuance of Aadhaar Number.
Biometric Data refers to the facial image, iris scan and fingerprints collected by the Enrolment Agency from the enrollees based on the standards prescribed by the UIDAI and by following the process laid down for the purpose. The data collected is passed onto the UIDAI as per the process prescribed.
Common Service Centres operating as franchisees of Service Center Agency (SCA) within a State, as part of the CSC Scheme of the National E-Governance Plan of India.
Civil Society Outreach, an invitation undertaken by UIDAI to get learnings from NGOs on issues related to Migrant labour, homeless etc.
Central Government Health Scheme
Comma Separated Variables or values, a simple file format for Computer which is widely used due to ease.
CIDR is the data centre/s where data of individuals enrolled and Aadhaar number holders is stored and accessed from.
De-duplication is the process of using the Demographic and Biometric data collected from an enrollee to check against rest of the data so as to avoid duplicate enrolments.
Date of Birth
Demographic Data refers to the personal information collected or verified by the Enrolling Agency based on the data fields prescribed by the UIDAI and by following the process laid down for the purpose. The data collected is passed on to the UIDAI as per the process prescribed.
Department of Information Technology
The UIDAI set up the Demographic Data Standards and Verification Procedure Committee (Data standards committee) chaired by Shri N. Vittal. The Data Standards Committee submitted its report on December 9, 2009.
Electronic Know Your Customer - an electronic substitute which is instant and paperless for industry use to meet KYC requirement of Banking, Telecom etc.
Ex-servicemen Contributory Health Scheme.
Empowered Group of Ministers.
Enrolment refers to the exercise of collection of demographic data after verification, collection of biometrics, and the allocation of the UID number after de-duplication.
Enrolment Centre refers to the premises located in the area where the enrolment is being carried out. One Enrolment Centre can host multiple Enrolment Stations.
Enrolment Station refers to an individual enrolment booth/enclosure inside the Enrolment Centre. The capture of Demographic and Biometric data is done in this Station.
False Positive Identification Rate which describes the proportion of identification transactions by users not enrolled in the system, in which an identifier is returned.
Programme of banking industry to expand banking to rural India.
Failure to Enrol refers to the failure of the biometric system to form a proper enrolment template for an end-user. The failure may be due to failure to capture the biometric sample or failure to extract template data (of sufficient quality)
Government –to- Citizen or transactions of Government which are targeted to large population.
Government-to-Government are those transactions that are with Central or State Government.
IFSC or Indian Financial System Code which is the code used by banking industry to identify a particular Branch.
Indian Oil Corporation Ltd.
ISO (International Organization for Standardization) is the world’s largest developer of voluntary International Standards. International Standards give state of the art specifications for products, services and good practice, helping to make industry more efficient and effective. Developed through global consensus, they help to break down barriers to international trade
A valid ASA who has been approved and has signed the agreement to access KYC API through their network
A valid AUA who has been approved and has signed the agreement to access KYC API
On the lines of KYC of Banking Industry like e.g, Ration Card Number or welfare beneficiary identity number
Fields required in addition to KYR fields required by the Registrars
Mahatma Gandhi National Rural Employment Guarantee Act
Enrolment Manual
Memorandum of Understanding
Non-Government Organization
National Population Register, which is a programme of Registrar General of India/Census Office for enrolling and assigning ID numbers to individuals seeking to enrol
National Rural Employment Guarantee Act
OTP is a one time personal identification number generally, sent to the mobile phone number for authentication framework.
Operator is the person employed by the Enrolment Agency and engaged in the capture of Demographic and Biometric Data.
Office of Registrar General of India
Aadhaar-based Personal Identity Data /Information including biometric and demographic information as well as the OTPused for Authentication
PoC or Proof-of-Concept is a programme undertaken in a smaller denomination to test the usefulness of the programme.
PoR or Proof of Relation is used in the context of minor getting enrolled in UIDAI.
Request for Proposal which is the term to denote tender or procurement formalities
Registrar General of India
Rashtriya Swasthya Bhima Yojana
Rural Development and Panchayati Raj
Reserve Bank of India
STQC or Standardisation Testing and Quality Certification : Directorate Standardisation Testing and Quality Certification (STQC) Directorate is an attached office of the Department of Electronics and Information Technology(DeitY), Government of India, provides quality assurance services in the area of Electronics and IT through countrywide network of laboratories and centres.
Temporary Identification Number provided by RGI
Unique Identification Authority of India
Unique Identification
Globally accepted standard definition of local language characters in a Computer system. Character sets defined by Unicode Consortium.
Universal Serial Bus
VID or Virtual ID is a temporary, revocable 16-digit random number mapped with the Aadhaar number. VID can be used in lieu of Aadhaar number whenever authentication or e-KYC services are performed. Authentication may be performed using VID in a manner similar to using Aadhaar number. It is not possible to derive Aadhaar number from VID.
Content Information
Published on: 30 Apr 2026
Last Updated: 23 May 2026
Owner: Shubham
- Documents
- Aadhaar Dashboard - Unique Identification Authority of India | Government of India
- Handbooks
- Videos - Unique Identification Authority of India | Government of India
- Annual Reports
Content Information
Published on: 30 Apr 2026
Last Updated: 23 May 2026
Owner: Shubham