hi bunty,

If you just want to get a good NIT then you can get nit Rourkela biomedical engineering at 97(other state) and 95.5(home state) percentiles.

But if you want good branches in good NITs then you have to get rank under 10000(all India rank) or 99.1 percentile in jee mains. 99.5+ for brances like cs/it.

I hope this will help!!

all the best for the future!!!