HI,

To get into an IIT, you need to qualify JEE mains and then appear for JEE advance. For qualifying jee mains you need to score a qualifying percentile which for the year 2020 were as follows:

Common Rank List (CRL)      90.3765335

GEN-EWS   70.2435518

Other Backward Classes (OBC-NCL)    72.8887969

Scheduled Caste (SC)     50.1760245

Scheduled Tribe (ST)   39.0696101

PwD    0.0618524

If we look at the qualifying percentile for common rank list, it is quite high and you will have to score a better percentile.

You can refer to the link given for jee main cut offs and as well as for cut off for NITs.

https://engineering.careers360.com/articles/jee-main-cutoff

You can also refer the college predictor to know about your chances to secure admission: Https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

I hope this answer helped you.

All the best!!