Aadhaar (English: Foundation) is a 12-digit unique identity number that can be obtained by
residents of India, based on their biometricand demographic data. The data is collected by the
Unique Identification Authority of India (UIDAI), a statutory authority established in January
2009 by the government of India, under the jurisdiction of the Ministry of Electronics and
Enabling Aadhaar for various services like Government & Non-Government Services,
Subsidy Benefits, Pensions, Scholarships, Social Benefits, Banking services, Insurance
services, Taxation services, Education, Employment, Healthcare etc., makes it essential to
ensure that Aadhaar data of the resident stored in the CIDR is accurate and up-to- date.
Demographic Data Update, The Need Could Arise From:
Changes in life events such as marriage may lead to residents changing their basic
demographic details such as name and address. Address and mobile number could also
change due to migration to newer locations. Residents may also want changes in their
relative’s details due to changes in life events such marriage, death of a relative etc. In
addition, residents could have other personal reasons to change their mobile number, email
Changes in various service delivery platforms may lead residents to declaration request
changes and to add mobile number to CIDR etc.
Errors made during the enrolment process wherein the resident’s demographic data may have
been captured incorrectly. Changes to “DoB/Age” and “Gender” fields are expected primarily
due to enrolment errors.
Since a resident can enrol anywhere in India, it may happen that a native speaker of language
"A" is enrolled by an operator of language "B" and consequently the resident’s local language
of enrolment is "B". Later, the resident may want to change the local language of enrolment
to another that he/she prefers. If so, then all the demographic information that is printed on
the Aadhaar letter will need to be updated in the new local language.
UIDAI may also ascertain availability of POI, POA and other documents collected at the time
of enrolment/update and its quality and decide to notify resident to update their demographic
information and submit the required document.
Biometric Update, The Need Could Arise From:
Age <5 years at the time of initial enrolment -The child should be re-enroled when the child
attains an age of 5 years and all biometric data should be provided. A de-duplication would
be done for the child at this stage. This request will be treated similar to a new enrolment
request while retaining the original Aadhaar number
Age between 5 and 15 years at the time of enrolment -The resident should furnish all
biometrics for updates when the resident attains age of 15 years.
Age >15 years at the time of enrolment – Residents are recommended to update their
biometric data every 10 years.
Events like accidents or diseases leading to biometric exception
As the Aadhaar authentication service is becoming ubiquitous, residents may also approach
for biometric updates because of authentication failures (called false rejects – where a correct
resident with valid Aadhaar number may be incorrectly rejected) which may result from
incorrect biometric capture or poor biometric quality captured at the time of enrolment. With
improvements in technology, it may be possible to capture better quality biometrics in the
UIDAI may verify the quality of biometric captured during enrolment/ update and decide a
threshold. All the residents whose biometrics are below the decided threshold level may be
notified by UIDAI to update of biometrics.
Aadhaar Details That Can Be Updated Are:
Name, Address, Date of Birth/Age, Gender, Mobile Number, Email Address, Relationship
Status and Information Sharing Consent
Iris, Finger Prints and Facial Photograph
UIDAI update process accepts wide range of PoI (Proof of Identity) and PoA (Proof of