Hello 

If you want to take admission in NITs for B.Tech programmes, cutoff varies every year depending on various factors and this year JEE Main scores will be normalized on the basis of two attempts. 
You can go through the link below to check the previous year JEE Main Cutoff for NITs for reference

 https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits

Kindly mention if you are seeking admission in any particular NIT or if in NIIT University. Also mention your category, home state and the Engineering branch in which you are interested.

Good Luck!