hi in 64 marks in jee mains  your percentile would be around 84 to 90 ,this is based on 2021  marks vs percentile . This year it depends on number of students took the exam in your slot , you can use percentile predictor of career 360 to check the percentile of jee  mains2022

here is 2021 marks vs percentile

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

Hi aspirant...!

Hope you're doing great...!

So, with regard of you're query. For you're marks the  percentile range will be  from 75-80 the rank between 1.9lakh-2.5lakh in general quota. these things will be varied according to the topper percentile in you're shift and the number of students appeared in you're session.

Hope this will helps you...!

GOOD LUCK....!