Hey,
Sorry to say that your percentile is not good to get any Nit . Nits are prestigious institutes of India which requires good rank. But I suggest you that kindly go through csab counseling just after the josaa counseling by which you may get Nit in your home state.
Here I recommend you a jee main college predictor tool which definitely help you.
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
All the best!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile