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Unique Identification Authority of India (UIDAI)

Last Update Date : April 29, 2019
Estimated Read Time: 6 min


The Unique Identification Authority of India or UIDAI is a statutory authority created by the government of India on July 12, 2016. It was formed under the provisions of Aadhaar Act, 2016. It is governed by the Ministry of Electronics and Information Technology.

Objectives of Unique Identification Authority of India

The government formed the Authority to serve the following objectives:

  • To issue Unique Identification Numbers named Aadhaar to all the residents of India
  • To ensure that this UID is robust enough to eliminate duplicate and fake identities
  • To ensure that Aadhaar can be verified and authenticated easily and cost-effectively

[ Read: How to Verify Aadhaar? ]

Responsibilities of UIDAI

As per the Aadhaar Act, 2016, the Authority has the following responsibilities:

  • Aadhaar enrolment and authentication
  • Operation and management of all stages of Aadhaar life cycle
  • Developing the policy, procedure and system for issuing Aadhaar numbers to individuals and perform authentication
  • Ensure the security of identity information and authentication records of individuals

Organisational Structure of UIDAI

The Unique Identification Authority of India had 8 regional offices located across India. It is headquartered in New Delhi. It also has two data centres located in Bengaluru and Gurugram.

Composition of the Authority

The Unique Identification Authority of India consists of three members appointed in part-time basis:

  • Shri J. Satyanarayan, IAS (Retd.) is the current part-time Chairman of the Authority
  • Dr. Anand Deshpande, Founder, Chairman and M.D. of Persistent Systems is currently appointed as a part-time member of UIDAI
  • Dr. Ajay Bhusan Pandey, is the current part-time CEO of the Unique Identification Authority of India

Headquarters of Unique Identification Authority of India

At the headquarters of The Unique Identification Authority of India, the CEO heads the organisation. He is assisted by 7 Deputy Director Generals (DDGs), Joint Secretary level Officers of Government of India, as in-charge of various wings of UIDAI.

The DDGs are supported by Assistant Director Generals (ADGs), Deputy Directors, Section Officers and Assistant Section Officers. The sanctioned manpower of HQ is 127 officers and staff members which also includes accountants and IT personnel.

Regional Offices

There are eight regional offices, each of which is headed by a Deputy Director General. The hierarchy comprises of Assistant Directors General, Deputy Directors, Section Officers, Assistant Section Officers, Senior Accounts Officer, Accountant and personal staff.

Organization Chart

Deputy Director General (Finance) is assisted by the following team for efficient discharge of assigned functions.

UIDAI Organization chart

List of Various Offices and States and Union Territories under their Jurisdiction

Regional Officers (ROs)States and union Territories covered by the RO
RO BengaluruKarnataka, Kerala, Tamil Naidu, Pondicherry, Lakshadweep
RO ChandigarhJammu & Kashmir, Punjab, Haryana, Himachal Pradesh and UT of Chandigarh
RO DelhiUttarakhand, Madhya Pradesh, Delhi and Rajasthan
RO GuwahatiAssam, Arunachal Pradesh, Meghalaya, Manipur, Nagaland, Mizoram, Tripura and Sikkim
RO HyderabadAndhra Pradesh, Telangana, Orissa, Chhattisgarh, Andaman and Nicobar
RO LucknowUttar Pradesh
RO MumbaiGujarat, Maharashtra, Goa, Dadar & Nagar Haveli, Daman & Diu
RO RanchiBihar, Jharkhand and West Bengal

Enrolment and Update Ecosystem

  • Registrars and Enrolment Agencies work in tandem to create Enrolment Ecosystem of UIDAI.
  • Registrars are entities recognised by UIDAI and authorised to enrol individuals for Aadhaar.
  • Enrolment Agencies are agencies appointed by Registrars to collect demographic and biometric information of individuals during the enrolment process.
  • Registrars and Enrolment Agencies together setup Enrolment Centres to facilitate enrolment for Aadhaar
  • Various devices used in the enrolment process are certified by STQC and UIDAI.
  • All the devices connect to the UIDAI designed standard Application Programming Interface (API).
  • The Authority has appointed multiple registrars, multiple enrolment agencies and multiple technology provides which has created a competitive market for business.

[ Read: Aadhaar status check using Enrolment Number ]

Authentication Ecosystem

  • The Unique Identification Authority of India has created a scalable authentication ecosystem to enable instant authentication of residents.
  • The ecosystem is capable of handling tens of millions of authentications per day and can be further scaled up if needed.
  • Various Authentication Service Agencies and Authentication User Agencies have been appointed by the UIDAI to handle authentication processes smoothly.
  • Establishment of technical standards and certification of biometric devices has been done by STQC in partnership with UIDAI.
  • Two data centres have been setup by UIDAI where authentication and other online services like e-KYC are deployed in active-active mode to ensure high availability.
  • Aadhaar authentication has also been adopted by banks and payment network operators to offer real-time, scalable and branch-less banking anywhere in the country.

UIDAI Grievance Redressal

Grievances at UIDAI are received through following channels:

Through UIDAI Contact Centre

UIDAI has set up a Contact Centre for handling queries and grievances related to Aadhaar Enrolment, Updation and other services. At the enrolment centre, the Enrolment Operator gives a printed acknowledgement slip to the resident after the enrolment process which contains the EID(Enrolment Number).

By using the EID a resident can approach UIDAI Contact Centre on following channels.

Contact Centre Details

  • Voice – 1947
  • Email –
  • Resident portal – File a Complaint

By Post

Grievances are received in UIDAI HQ and ROs through post / hard copy. The grievances are examined and then forwarded in hard copy to concerned Regional Office/ Concerned Section at HQ after approval of Deputy Director, who is Public Grievance Officer at the Authority.

The concerned Regional Office/Concerned Section disposes the grievance by replying directly to the complainant under intimation to the grievance cell, UIDAI, HQ. Interim replies, if required, are given by the concerned Regional Office/concerned Section at HQ.

Grievances Received Through Public Grievance Portal Of The Government Of India

Grievances are received in UIDAI through the Public Grievance Portal There are following modes within Public Grievance Portal:

  • DPG (Directorate of public grievances),
  • DARPG (Department of Administrative reforms & Public Grievances)
  • Parent Organization,
  • Direct receipts,
  • President’s Secretariat,
  • Pension,
  • Minister’s office,
  • P.M.’s Office.

The grievances are examined and then forwarded online to concerned Regional Office / Concerned Section at HQ after approval of Deputy Director, who is the Public Grievance Officer at the Authority. The concerned Regional Office / Concerned Section disposes the grievance online. Interim replies, if required, are given by the concerned Regional Office / concerned Section at HQ.

Through Email

Many times, grievance is received through e-mails by the Authority’s officials. These emails are examined and forwarded to concerned Regional Office/Concerned Section at H.Q. The concerned R.O/Section at H.Q disposes the grievance by replying the complainant over e- mail under intimation to the grievance cell.

Disclosure Norms of UIDAI

The demographic and biometric data collected by the UIDAI is confidential in nature. Therefore, only residents to whom this data relates can seek it. No other resident will be provided any personal information related to a third party or any other resident to protect privacy and maintain confidentiality of residents enrolled under the Aadhaar program.

Applicants seeking information from the UIDAI may also be required to provide additional validation of identity in certain cases.

Residents seeking details of their enrolments like processing stages, Aadhaar number or dispatch and delivery

The UIDAI portal ( provides facility to the taxpayers to easily find Aadhaar number or Aadhaar generation status by furnishing the EID number. Similarly, taxpayers are also allowed to get the electronic version of the Aadhaar letter i.e. E-Aadhaar from the resident portal by furnishing the EID number along with demographic information.

If the information is matched with the information available in the UIDAI database, a one-time password (OTP) will be sent to the resident’s mobile number or e-mail address provided by the resident at the time of enrolment. In the case, the resident who has not provided mobile number and/or e-mail address at the time of enrolment or who has changed her/his mobile number, the resident will be required to furnish a mobile number along with name, EID and pin code to get the one-time password (OTP) after verification.

The OTP is required to download E-Aadhaar. The resident can also get E-Aadhaar through UIDAI regional offices and contact centres after due verification as per the procedure by the concerned regional offices and contact centres.

The UIDAI Login portal offers numerous services related to Aadhaar and its linking with other important government documents like PAN card, Ration card etc. It is also necessary to mention your Aadhaar number in your Income tax return.

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Chetan Chandak (B.Com, LLB)
Chetan is the Head of Tax Research at H&R Block (India) with an experience of more than a decade in tax advising. He is also a regular contributor for some of the leading news publications in India such as Economic Times, Financial Express and Money Control. Professionally, Chetan is fascinated by international taxation and expat-related tax research.

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