Note normally an aadhaar card is mailed to your registered house address in 10 to 15 days.
In case you havent still received your aadhaar card after 1 month, you will have enroll for aadhaar card again.
First check if your e-aadhaar card is available on the UIDAI website or not.
In case your aadhaar status shows, ‘rejected’, or ‘not found’ or ‘cannot be processed’ then you will have to enroll for the aadhaar card again.
You can contact your nearest aadhaar card center or can just enroll for a new aadhaar card.
To know more about aadhaar go to : Aadhaar card help