How can I update my demographic details in Aadhaar?

You can update your demographic details in Aadhaar
1 - By enrolling through nearest enrolment centre. You can search the nearest enrolment centre by clicking https://bhuvan.nrsc.gov.in/aadhaar/
2- Using Online services for address update and document update available at https://myaadhaar.uidai.gov.in/ .