Hi Aditi.

AIIMS, New Delhi has started a new registration process, which is known by Prospective Applicants Advanced Registration (PAAR). In this, the AIIMS MSc Registration is divided into three stages. First is Basic Registration which is free of cost and the aspirants have to provide their Basic details and upload the images. Next step is the Generation of Code for Final Registration. This is applicable for only those candidates whose Basic Registration has been accepted. The last and final step of PAAR is Final Registration, in which the applicants have to fill in their educational qualification details, choose a test center and pay the application fee.

If you are not able to generate code then your application may not have been accepted.

Hope this helps.