•  a rank under 10–15k can fetch you a top NITs. Accordingly your score in JEE Mains Paper 1 should be more than 180+ (200+ to be on the safer side) atleast. 

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

Hi Ashitosh,

We can predict the marks required only on the basis of cut off. But the cut off changes every year of every college. So, we can't predict the marks required this year. Although we can have an idea on the basis of previous year cut off. The details of cut off of previous year with top 10 NITs along with branch and category are provided on the link https://engineering.careers360.com/articles/jee-main-cutoff. Hope this helps.

All the best!!