Get Aadhaar Book an Appointment For Enrolment or to update your Aadhaar data you can book an online appointment at an Aadhaar Seva Kendra. A: To log in , visit myaadhaar .uidai.gov.in, click “ Login ,” enter your 12-digit Aadhaar number, solve the captcha, request an OTP, enter the OTP received on your registered mobile number, and click “ Login ” to access your dashboard. An Aadhaar Number holder can login MyAadhaar portal using Aadhaar number and OTP received on registered mobile number. You can verify your email address and mobile number that has been declared at the time of enrolment or during latest Aadhaar detail update.