Hi aspirant, since you have 64 percentile in your JEE mains exam so it is somehow seems difficult for you to get into your desired Institute but no need to low yourself you can also get other good college as well.

You may take the help of College predictor tool by Careers360 to predict your future college by your own on behalf of your percentile;

https://engineering.careers360.com/jee-main-rank-predictor?utm_source=qna&utm_medium=jee_rp

Thank You.