Visit the UIDAI official website
Go to the Aadhaar services section
Select the option to verify Aadhaar mobile number
Enter your Aadhaar number and the mobile number you want to check
Enter the captcha code shown on the screen
Click on the verify or submit button
If the number is linked, the website will confirm it
If the number is not linked, the website will show that it is not registered
You can also visit an Aadhaar Enrolment or Update Centre to check the linked mobile number
Carry your Aadhaar card and valid ID proof if required
Call the UIDAI helpline at 1947 for assistance