Once your Aadhar card is processed sucessfully or it shows the status as dispatched then that mean that your Aadhar card has been generated already and its on the way to reach us through post .but that may not reach in time . so after a long time uidai provided to download the duplicate e-Aadhar card online which is equally valid as the original one .it is just a photo copy of the original Aadhar card .
Now you can easily download the e-aadhaar card letter from the official website of UIDAI.All you have to do is just enter some of your details online.A print our of your e-aadhaar will be available within seconds.Following list will give you the mandatory details to download the aadhaar card.
- Enrollment number & date,time.
- Name of the resident.
- Pin code of the area.
so the acknowledgement slip will contain all the details requied so only this slip is enough to download e-Aadhar card online .
first visit uidai residential portal
https://eaadhaar.uidai.gov.in/
enter enrollment number and the date and time on the Aadhar card enrollment acknowledgement slip
enter the namee of resident and pin code and press enter
then one time password will be generated and send to your registered mobile (OTP) and it is valid for 15 mins only
then follow the instructions to download the e-Aadhar and download it
when downloaded the e-Aadhar card (duplicate Aadhar card )online you will download a password protected pdf file .. and the password for the pdf of e-Aadhar card will be the residents PINCODE .
and this downloaded Aadhar card is the duplicate e-Aadhar card which is equal in power with the original one .
AaDHAR CARD AN INDIAN GOVT UNIQUE IDENTIFICATION 
sir l don’t get my aadhar card because my slip has lost please chech my aadhar card
If you have lost your AADHAAR Card enrollment acknowledgement slip and do not know the enrollment details, unfortunately as of now there is NO online system, where you can check the status from your name or other details.
We are watching the development in this area very closely and we will update this page as soon as a system is in place whereby residents can download duplicate AADHAAR card using their demographic information.