Hello Aspirant,

You have pretty well in JEE main paper 2. So 246 is a good score for B.Plan and you have a decent chance to get into NITs. But the exact admission possibilities depends on your category rank ,the number of seats and number of applicants in each NITs for B.Plan. You may use the college predictor for JEE Main paper 2 based on your exact rank,home state and category :

Some other useful links:

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning#JEE-Main-Paper-2-Cutoff-2021

https://engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning#Previous-Year-JEE-Main-Paper-2-Cutoff

All the best