Hello aspirant!! Your rank is too high. Try for B Category seats you might get in private colleges. To get CSE in top colleges you have to go for management seats or paid seats. 

Below links gives you information about JEE Mains accepting colleges and much more. 

https://engineering.careers360.com/colleges/list-of-engineering-colleges-in-india-accepting-jee-main

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

Hope this helps you. 

Thank you.