Dear Vishal,

If you want to join NIT, you have to make sure that you score more that 90 percentile in CAT.

However, here are a few factors which decides the cutoff:

• Difficulty level of exam
• Number of test takers
• Number of candidates qualifying for the next rounds
• Number of seats
• Institute repute or ranking

You can know more with the help of the link given below.

https://bschool.careers360.com/articles/cat-cutoff

Hope it helps.

Good Luck.