The mobile number in your Aadhaar record is used for many UIDAI authentication and online-service steps. Updating that contact number is different from the identity checks your telecom operator performs when issuing a SIM. Start by checking whether you still control the number currently registered with Aadhaar.
Choose the route that matches your access
| Your situation | Current route to check |
|---|---|
| You still have the registered number and can use the official Aadhaar app | Check the app’s mobile-number update service and its authentication requirements. |
| You lost access to the registered number | Visit an Aadhaar Seva Kendra or authorised enrolment/update centre. |
| No mobile number has ever been registered | First-time registration requires an authorised centre visit. |
The current Aadhaar app FAQ distinguishes two app scenarios. When the app uses the same number already registered with Aadhaar, the new number is verified by OTP along with face authentication and payment. If the app is registered using a different number, both old and new numbers require OTP verification, alongside face authentication. Follow the scenario actually shown for your account.
Use the official app or centre
Get the app through UIDAI’s official links. Older guidance about the myAadhaar website or mAadhaar is not necessarily a description of the newer Aadhaar app. A lookalike website offering to replace a lost registered number remotely is not a substitute for the authorised process.
For a centre visit, use UIDAI’s locator and check the service offered. The enrolment and update FAQ says that a mobile-only update does not require the old mobile number or a supporting document. Other changes requested at the same visit can have their own document requirements. Bring your Aadhaar details and a working new number, and complete the verification the authorised operator requires.
Check the fee and the acknowledgement
UIDAI’s published charges list ₹75 for a separate demographic update, including a mobile-number change. Check the applicable service before paying and collect the receipt. If an amount appears inconsistent, ask for an itemised explanation or raise it through UIDAI support instead of assuming an unexplained charge is correct.
Before submitting, read the new number digit by digit. Save the acknowledgement and its request identifier. An acknowledgement is evidence of a request; it does not mean the number has already changed.
Allow for processing
The Aadhaar app FAQ states up to 30 days for mobile-number or address updates through that app. General UIDAI update guidance allows longer processing for some requests. Use the guidance for the route you selected and track the acknowledgement. Do not rely on an unverified two-to-seven-working-day promise.
After completion, verify the new contact through an official UIDAI service. Avoid repeated OTP requests while a request is still pending. If the request is overdue or rejected, contact UIDAI through its official support or 1947 with the reference and the displayed reason.
If something goes wrong
- OTP does not arrive: check which number the service says it is verifying. Do not assume that a code is being sent to the new number at every stage.
- Face or centre authentication fails: use the official assistance route. Do not weaken phone security or give remote access to a stranger to “fix” it.
- The entered number is wrong: report the issue promptly with the request reference; do not try to access a number belonging to someone else.
- Only your SIM’s KYC is wrong: contact the telecom operator. Changing Aadhaar’s contact field is a different operation.
Reviewed on 27 October 2026 against current UIDAI app, centre and update guidance. No fixed completion time is promised.
Techleez Editorial Team
The Techleez publishes practical digital guides. For our scope, use of AI assistance and corrections process, read our editorial policy.
More from this author →
