If we have a look at the cut-offs for International Institute of Information Technology for the year 2021, then the cut-off percentile for CS and ECE are as follows, and do note that IIIT Hyderabad does not have any reservation as such for any category and the admission is purely on merit.

Computer Science and Engineering: 99.9228511
Electronics and Communication Engineering: 99.7348299

So, you can definitely get admission into ECE here.

You can also use our college predictor to see your chances in all the colleges:
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hope I have answered your question. All the best!