Dear Aspirant, NIT 2020 cut offs are not out yet. They will be released after the end of JoSAA counselling for which registration started yesterday 6th October. You need to register if you wish for a seat in NITs. Coming to your rank. Cutoffs for branches like CSE and IT are high because of their demand. It's very tough to say that you will definitely get admission at NITs. There are chances for you getting mechanical,civil or electrical engineering seat at NITs based on your category. You need to register yourself in JoSAA counselling and wait until cutoffs are released so that you can accurately check which NITs you can get into.

Here's a link to a college prediction website based on your rank ,it will help you predict whether you can get into NIT or not.

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer