hi..

Aspirant as per your query you have asked for cut off percentile for you to get into NIT's ,usually every year National Testing Agency (NTA) decides the cut off for the JEE mains exams and the candidates who are appearing this year for JEE have two chances to give the exam which is great deal. The best score of those chances is considered.The expected cutoff this year for JEE mains considering previous years cut off for OBC - NCL category students will be between 74 -76 marks.

hope this helps.

all the best.