An aadhaar is a unique 12-digit number that contains information about an individual such as name, date of birth, biometrics, phone number, address, etc. If someone wants to change their aadhaar information, they can Update Aadhar Card with the changed information. The aadhaar upgrade process is quite simple, a person can follow the steps mentioned below to upgrade their aadhaar card. Aadhaar online update is completely free, there will be no charge for updating information online. Updating Aadhaar online can be done easily with no costs or bugs. Offline aadhaar upgrade is not free, there is a minimum fee that will be charged at the registration center, the fee will only be INR 100. Demographics can be updated online free of charge.