Hello,

Yes, if your basic registration for AIIMS B.Sc Nursing 2020 had been accepted and generated code you can directly generate the code for final registration of AIIMS B.Sc Nursing 2021. You do not have to fill the basic registration as per the information given in the admission notice in the official page. To check the admission notice please copy and paste the given in the web browser

https://www.aiimsexams.ac.in/pdf/Final%20BSc-21%20advt%20for%20General%20Section.pdf