Aadhaar Seva Kendra

No, the charges for Aadhaar Services are same across all the Aadhaar centres in the country including Aadhaar Seva Kendras .
For charges please refer : Aadhaar Enrolment & Update Charges

Yes, you can reschedule the appointment before 24 hours by logging into the appointment portal with the same mobile number/ email ID (as given earlier).

Aadhaar Seva Kendras provides all type of Aadhaar services such as
1. New Enrolment for all age group.
2. Update of any demographic Information (Name, Address, Gender, Date of Birth, Mobile number and Email Id).
3. Update of biometric information (Photo, Fingerprints and Iris Scans) .
4. Mandatory Biometric Update of children (attaining the age of 5 and 15 years).
5.Document update (POI and POA) .
6.Find & Print Aadhaar.

Aadhaar Seva Kendras are open all 7 days of the week excluding national/regional holidays. Normally it functions from 9:30 AM to 5:30 PM (IST).
Aadhaar Enrolment Centres other than UIDAI ASKs follow timings as defined by their respective registrars. Individuals seeking enrolment/ Aadhaar number holders may contact their nearby Aadhaar Enrolment Centre for more information.

‘Aadhaar Seva Kendra’ or ASK is a single-stop destination for all Aadhaar services for the individuals. ASK offer dedicated Aadhaar enrolment and update services to individuals in a state-of-the-art environment. The Aadhaar Seva Kendra offers a comfortable air-conditioned environment to individuals. All ASK are wheelchair friendly and have special provisions to service the elderly and specially abled. More info on ASKs is available here: uidai.gov.in website.

A consolidated list of all functional ASKs is available at: Aadhaar Seva Kendra List
These ASKs are available in addition to Aadhaar Enrolment Centres already run by Banks, Post Offices, CSC, BSNL and State Governments.