Visit the UIDAI website
Click on “Verify Email/Mobile Number”
Enter your Aadhaar number
Enter the mobile number you want to check
Enter the captcha code
Click on “Send OTP”
If the mobile number is linked, you will receive an OTP
If no OTP is received, the mobile number is not linked to Aadhaar
You can also visit an Aadhaar Enrolment/Update Centre
Carry your Aadhaar card and ask the operator to verify the linked mobile number