84.6 percentile would fetch you a rank around 157542-177100.As of now its tough to say because the analysis and also cutoffs change every year due to many factors like total students appearing for exam,difficulty level of paper etc.based on your rank you have tough to no chances to fetch seat in nits,iiits.you need better percentile 96-98+ to fetch seat in top nits,iiits.workhard for the upcoming jeemain sessions.you can try to fetch seat in private engineering and state engineering colleges with this percentile.you may have chances to fetch in top colleges of state with your percentile.you can get closing rank for josaa official website: https://josaa.nic.in/Result/Result/currentorcr.aspx

.for more information to get a personalised report on what all chances you have for your rank refer to: https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

hope this helps,

thankyou.