If you want to apply for Aadhaar, you must visit Aadhaar enrollment centre. You can go to any authorized Aadhaar enrollment centre or camp nearby you or other centre somewhere in India to maintain itself of register.These centres are also called enrollment agencies for employments by UIDAI. According to the official reports, there are 174 agencies all over the India as on 01.05.2012, they may increase as for requirement. A person can ask Aadhaar number by visits which of the enrollment camp listed in the country. Look for a Aadhaar centre of easy recording and visit - that to register you for Aadhaar.