Hello Aspirant,

According to the percentile you have mentioned in the question your expected rank would be near about 45,000 and your category rank would be in the range of 10,000-15,000. On the basis of this rank it is little bit difficult to get top NITs even with your reservation category as per previous year's cut-offs. But yes on the basis of this percentile you might get qualified for JEE-Advance because last year the cut-off for OBC category was around 74 percentile. By clearing JEE-Advance with good rank you can get into IITs. You can check out last year's cut-offs from the link given below :-

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff/amp

You can also use JEE-Main College Predictor to predict your colleges on the basis of your percentile and category :-

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

I hope this information helps you.

Good Luck!!