Dear

Yes given that your category is ST you will definitely get some NIT Or a good state government college.

I am giving a link of jeemain cutoffs of previous years

Which contains

Category wise jeemain minimum qualifying percentage

Past Years jeemain Cutoffs which further includes year wise cutoffs , course wise cutoffs , and college wise cutoffs.

This will help you find a suitable college according to your rank!

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

Good luck and keep asking!!