Hello aspirant!! You can't get seat for your percentile. So try for some private colleges because you may get good branches in private colleges. Go through below links for more details. You might get good branch in private colleges. 

https://engineering.careers360.com/articles/jee-main-cutoff/amp

https://engineering.careers360.com/jee-main-college-predictor

https://engineering.careers360.com/colleges/ranking/top-engineering-colleges-in-India-accepting-jee-main-score

All the best!!