Hello aspirant

hope you are doing great. As per your query  I would glad to tell you that at your rank you holds very low chances of getting admission in NITs . Their are some chances of getting in civil enginerring seat but they are also not fixed . I would advise you to start preparing fot next attempt and follow the below link for cut off reference:-

https://engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches

Hope you found this answer helpful. Good luck for your future