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"Mobile number is mandatory to receive a password for login," according to the UIDAI website - uidai.gov.in. This mobile number is the one registered at the time of applying for Aadhaar. Users can log into the Aadhaar self-service update portal and submit a request in three steps, the UIDAI portal added. These steps are: login with Aadhaar number, upload documents and select the service provider.

Register/Update your mobile number in Aadhaar. Locate the verified enrolment & update centres in major cities : https://t.co/BrQYNN423Fpic.twitter.com/Ha9VsVTnxr

— UIDAI RO MUMBAI (@uidairomumbai) August 31, 2017

How to update Aadhaar card address

Visit the UIDAI website to find and click on the 'Update Aadhaar Details (Online)' tool. This tool can also be accessed through its link.

update aadhaar details uidai website(Find and click on the 'Update Aadhaar Details (Online)' link on the UIDAI portal)

Source : http://www.ndtv.com/business/aadhaar-changed-address-how-to-update-it-on-aadhaar-card-1751582