Hii Bhanu
To get admission into NIT you should compulsorily write JEE mains and then should score the qualifying marks.Only your 12th marks cannot help you to get into NIT.
Hope the details were helpful.
For further more details about NEET,please do refer the link given below:
https://medicine.careers360.com/articles/neet-cut-off
Thank You
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile