In case of update of mobile range/Electronic mail id, No letter is going to be sent, just the notification might be despatched around the supplied cell amount/e-mail id. Help is available to understand the CSC UCL registration procedure. Each and every Indian metropolis includes a CSC Aadhaar UCL registration facility, https://dmozbookmark.com/story18223390/little-known-facts-about-aadhar-print-portal