Go to UIDAI's official website at https://residentpvc.uidai.gov.in/order-pvcreprint and click on 'My Aadhaar'

Select 'Order Aadhaar PVC Card' and enter your 12-digit Aadhaar card number

Enter the captcha code, then choose 'My mobile number is not registered'

Enter a different mobile number and then press the "Send OTP" button. This might be any mobile number you provide where you would receive an OTP

After entering the OTP number, check the "Terms and Conditions" box and click the "Submit" button

You can now see a preview of the Aadhaar letter

Now double-check the information, then select "Make Payment" to pay online