UIDAI is mandated to issue an easily verifiable 12 digit random number as Unique Identity - Aadhaar to all Residents of India. Updating data on Aadhaar Registered Mobile Number Registered mobile number is essential to access Aadhaar Online Services You can verify your mobile number that has been declared at the time of enrolment or during latest Aadhaar detail update . Verify Mobile Number If you have not registered your Mobile number while enrolling for Aadhaar, you are required to visit a Permanent Enrolment Centre to get it registered. Enabling Aadhaar for various services like Government & Non-Government Services ... Learn how to update your mobile number in Aadhaar card online or offline. Step-by-step instructions, appointment booking, fees, and status tracking explained clearly. You can apply for update /correction of your Aadhaar Card data online. This service is provided by the Unique Identification Authority of India (UIDAI). Users can update details such as name, gender, date of birth, address and mobile number . The request for correction/ update can also be sent by post. Frequently Asked Questions are also provided to help users.