You receive message on your register mobile your Aadhaar Card Generation is Rejected, if your Aadhaar Card Generation is Rejected, What we do.
First of all don't miss your enrollment receipt.
Communicate with UIDAI Office for your rejection.
Don't go for again re-enrollment. This is time wastage only. if you enroll one time, you can not enroll again.A person can enroll for Aadhaar Card only once
If UIDAI Office is permitting you for enrollment again then you can go for enrollment
If you nor receive your Aadhar card after 3 months waiting then you can check what is the problem with the help of your Enrollment ID,
and you can receive E- Aadhar Card from online