Sir,

As your son done well in exam. At this percentile the rank should be around to 92000 for you son, at which its really very very hard to get any of NIT's seat for general category student.

I can provide you the last some years cutoff for all the NIT's and you will get the better idea from it:

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

But you can predict many more good Colleges by this grade of your son. For that i am providing you with the link below to predict college by just mentioning your son's grade and preferred branch to pursue:

https://engineering.careers360.com/jee-main-college-predictor

And also if you have any questions for your son's admission or college, then u can ask us.

Thank you