Dear aspirant

The class 12 percentage required for NEET 2022 exam is separate for each category and can be listed as under. NEET eligibility marks in class 12 to be considered are aggregate marks only for PCB subjects

UR - 50%,

OBC/SC/ST - 40%,

PWD - 45%

As you have given improvement exam and had scored an aggregate of 64% in your PCB subject, which fulfill eligible criteria of neet. So yes you are eligible for writing neet examination and getting admission in medical College.

you can check further details about eligibility criteria from link below

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-eligibility-criteria-2022/amp

You can use NEET UG college predictor tool for knowing chances of getting MBBS BDS ayush colleges at your expected marks.

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp

hope it was helpful

all the best