No,qualifying JEE main alone would not be sufficient.IIIT hyderabad is one of the most sought after institutes by aspirants in India.So you will have to score way more than the qualifying marks.Your rank must lie within the closing rank of either home state quota or other state quota to get an admission into the institute.The closing rank for B.Tech in CSE and MS by Research in CSE was 63 and B.Tech in ECE and MS by Research in ECE was 200 in the year 2019.So you must have above 98%(normailsed percentile) to get an admission in IIIT H.