Specifically, any person in India can voluntarily register to obtain an Aadhaar number, regardless of age or gender. Aadhaar number is a primary requirement from newborn babies. An Aadhaar number will be created in the name of an individual. Through that number, all information related to that person can be obtained. Only one Aadhaar will be created in the name of an individual. Aadhaar card will contain the details of Indian citizen's name, date of birth, gender, residential address, mobile number, email id.