Your mobile number linked to Aadhaar is the backbone of nearly every digital service in India. From receiving OTPs for bank logins to verifying your identity for government schemes, a correctly linked mobile number is essential. Many people assume they can simply log in to the UIDAI website and change their number, but the reality is different. Updating or adding a mobile number in Aadhaar generally requires an in-person visit to an Aadhaar Seva Kendra or enrolment centre, because it involves biometric verification. This guide explains the accurate process so you do not waste time looking for a fully online shortcut that does not exist.
Why You Cannot Update Mobile Number Fully Online
UIDAI allows several Aadhaar updates online through the myAadhaar portal, such as updating your address with valid documents. However, mobile number update is treated as a sensitive demographic change. Because there is no document that proves a phone number belongs to you, UIDAI requires biometric authentication (fingerprint or iris) at a physical centre to confirm your identity before linking a new number. This safeguard prevents fraudsters from hijacking someone’s Aadhaar OTPs by changing the registered mobile remotely.
Step-by-Step: Updating Your Mobile Number
While the verification itself happens at a centre, you can prepare and save time by booking an appointment online first.
- Step 1: Visit the official UIDAI website and open the appointment booking section, or go directly to the myAadhaar portal.
- Step 2: Choose your nearest Aadhaar Seva Kendra and book an available time slot. Many enrolment centres in banks and post offices also accept walk-ins, but appointments reduce waiting.
- Step 3: Carry your original Aadhaar card or a printout of your Aadhaar number. You do not need any document to prove the mobile number itself.
- Step 4: At the centre, fill out the Aadhaar update or correction form and write the new mobile number you want linked.
- Step 5: Provide your biometric verification (fingerprint and/or iris scan) so the operator can confirm your identity.
- Step 6: Pay the prescribed fee and collect the acknowledgement slip with the Update Request Number (URN).
The update typically reflects within a few days. Your new number will then start receiving Aadhaar-related OTPs.
Fees for Mobile Number Update
UIDAI charges a nominal fee for biometric and demographic updates. As per the standard fee schedule, a demographic update such as mobile number is charged a small fixed amount (commonly Rs 50, inclusive of taxes). Always confirm the current fee at the centre and insist on the acknowledgement slip. Be wary of agents who demand far higher amounts.
Why a Linked Mobile Number Matters
A correctly linked mobile number is critical because it is your gateway to OTP-based authentication across the financial ecosystem:
- Bank account opening and net banking verification
- e-KYC for mutual funds, demat accounts, and insurance
- Receiving OTPs to authorise transactions and logins
- Accessing DigiLocker and downloading e-Aadhaar
The same linked mobile underpins the digital payments you use every day. If you want to understand the rails that depend on this, read our guide on What Is UPI and How to Use It Safely. A stale or wrong number can lock you out of these services at the worst possible moment.
Aadhaar and PAN: Keep Both in Sync
Your Aadhaar is also tied to your PAN for tax compliance. If you have not already done so, make sure both are linked. Our step-by-step walkthrough on How to Link Aadhaar with PAN Card Online covers the process in detail, and an updated mobile number makes that verification smoother because the linking process relies on OTPs sent to your registered number.
Common Mistakes to Avoid
- Do not share your Aadhaar OTP or biometric details with any agent claiming to update your number remotely; this is a fraud signal.
- Do not assume the change is instant; allow a few days for it to reflect.
- Keep your acknowledgement slip safe so you can track the request status online using the URN.
- Verify the new number works by trying to download e-Aadhaar with an OTP after a few days.
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FAQ
Q: Can I update my Aadhaar mobile number completely online?
No. Because it requires biometric verification, you must visit an Aadhaar Seva Kendra or enrolment centre. You can only book the appointment online.
Q: What documents do I need to change my mobile number?
You need no document for the number itself. Carry your Aadhaar number or card; identity is confirmed through your biometrics.
Q: How much does it cost?
A nominal fee (commonly around Rs 50) applies. Confirm the exact amount at the centre and keep the receipt.
Q: How long does the update take?
The new number usually starts working within a few days. You can track the status using the Update Request Number on the UIDAI portal.
This article is for informational purposes only and is not financial advice. Consult a SEBI-registered advisor or tax professional before making decisions.