Hey aspirant

Admission to iit is based on jee advanced not on jee mains. A general candidate should score above 88 percentile in jee mains for qualifying jee advanced. With above percentile you have a chance of getting admission in private engineering colleges. Cut off percentile  for obc candidates for qualifying jee advanced is 68+ and ews is 66+. For more details on college prediction refer the below link https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp