Hey there, Your percentile is quite good and you also belong to EWS Category so that will be very much helpful for you.

You can take admission in IIIT but getting CSE might be difficult but you can still try and also try for other branches at IIITs and NITs too.

I will recommend you to check All The Colleges, That is available for You on basis of your rankings and Reservation, Then You can also check that at Our JEE MAINS COLLEGE Predictor. That will be very helpful for You. And Then You can easily compare good colleges and choose which one will be best for you.

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

ALL THE BEST :)