You didn't mentioned your state nor your category. So it's hard to predict if you get any government colleges. If you are from general category then you have no possibility of getting any NIT's. Now if you have any state government colleges that accept JEE MAINS score then you may have some probability depending upon the branch you choose as well as the category you belong to. So there are quite a number of factors those are unknown and we can't assure you.

Now you can visit the JEE MAINS college predictor from career360.com (//career360.com) to know about the colleges you are eligible for with your percentile score. I am providing the link below:

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

To know about top government colleges accepting JEE MAINS score visit the link below:

https://engineering.careers360.com/colleges/ranking/top-government-engineering-colleges-in-India-accepting-jee-main-score

I hope you got my point. All the very best for your future endeavors!