Hello Aspirant,

This year total 869010 students attempted jee January. You cam calculate your approximate rank using formula :(100-percentile)*869010/100. That is 2,25,942. Since you are st category.. The chances of getting NIT are less. You may or might not get seat. We can't definitely say whether you will get or not. I'm giving you the link of nits previous yearscut offs:

https://www.google.com/amp/s/engineering.careers360.com/articles/nits-cutoff-for-top-btech-branches/amp

If you want to predict the colleges you can use:

https://engineering.careers360.com/jee-main-college-predictor