There are 2 different ways you can get your details updated:-
• By Visiting Permanent Enrolment centre. Search nearest enrolment centre by clicking on “Locate Enrolment Center” on uidai.gov.in.
• Online using Self Service Update Portal (SSUP). Click “Update Aadhaar Details (Online)” on uidai.gov.in.
In case you are visiting Permanent Enrolment centre, you can get both Demographics (Name, Address, DoB, Gender, Mobile & Email) & Biometrics (Finger Prints, Iris & Photograph).
Yes, for updation in Aadhaar, either Demographic or Biometric, you have to pay Rs. 50/- (including taxes) to the service provider each time you get your details updated. You can also click on “Charges for Various UIDAI Services at Aadhaar Kendra (PEC)” on uidai.gov.in for UIDAI approved Fee Structure.