BioMetric Update
To change your Photo, fingerprints or eye scan, it will cost Rs 100.
demogrpahic update
To change your name, birthday, or address, it will cost Rs 50. If you need to change both, you will have to pay both fees.
https://uidai.gov.in/images/Aadhaar_Enrolment_and_Update_-_English.pdf