Hello Mam, Your rank is good and you also belong to EWS Category and that will be very much helpful to you.

Getting IIIT might be difficult but you can try for NITs and that will be very much helpful to you. You can even try for branches other than CSE at NIT and you can get that 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 :)