Sorry, better luck next time. There is no way to generate the AIIMS PG 2020 code again full stop as you have missed the last date to generate the code for AIIMS PG 2020 you cannot regenerate again. don't worry. Study hard and try for the next AIIMS PG. You will definitely score a good marks in the next time and don't it forget to miss any of the steps in AIIMS PG application process. Good luck .