Hello.

Your rank determines the branch you secure in the NITs. The marks vs rank keep varying each year along with cutoffs due to various factors like difficulty level of question papers, average score of students etc. You could determine your rank using the rank predictor:

https://engineering.careers360.com/articles/jee-main-rank-predictor

Here are the previous year cutoffs:

https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-warangal

Hope this helps.