Ans. Firstly visited UIDAI website and go to aadhar card registration link, fill the required form by mentioning the personal details, after giving these details provide the demographic details.now you have to click on the fix appointment button it would fix an appointment at aadhar card enrolment center. After fixing the appointment just go to the office on the date of appointment and provide them the necessary documents. at this center documents along with parents aadhar card is verified. after verification if child is above 5 years old his biometric details is taken and linked to the aadhar card.