Visit the official UIDAI website
Go to the “Verify Email/Mobile Number” section
Enter your Aadhaar number and mobile number
Enter the captcha code
Click on “Verify”
If the mobile number is linked, the status will show as verified
If the mobile number is not linked, it will show as not registered
Visit an Aadhaar Enrolment/Update Center if you need to update your mobile number
Carry your Aadhaar card and valid ID proof when visiting the center