Hi

The step that is about downloading and printing is for the confirmation page and not the admit card.
I am explaining the whole process here:

First click on the new registration window and fill in all the basic particulars and generate a unique id and password that will be sent to you on your email and mobile.
After this login with the ID and password and fill in the next step which is uploading the images. Upload the images in correct format so that they do not get rejected.
Once the above steps are completed 3rd step is to print the confirmation page. Download the confirmation page and print is and preserve it for future use.
This is it for now. This completes your basic registration and now you hae to wait for the authorities to accept your application and upload prospectus.
After the uploading for prospection a code will be generated for you using which you will be able to do the final registration from 21st of february till 12th march.

For more details use the following link
https://medicine.careers360.com/articles/aiims-mbbs-application-form

Thanks!