I got 64.21 % in jee mains can I get admission in aissms?

Hello,
With that rank and percentile in jee main, you cannot get a seat in any branch of AISSMS. you percentile is too low. You will surely not get any good college switch this rank. So please go for some good private engineering colleges in India like Sharda Amity SRM etc.
Here's a list of some of the best
https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/colleges/ranking/top-private-engineering-colleges-in-India&ved=2ahUKEwiDiMDr3o7jAhUCfH0KHUGUBOkQFjAEegQIBhAB&usg=AOvVaw3ZtyjIynwh5jLDs3nOHHoU


Hope it helps
Thank you