Hello,

Overall expected rank with the given percentile is expected to be in between 235290 - 264500 . To check the expected rank click on the link below

The category rank is expected to be around 40000. Considering the previous year cut off you do not have chances of getting seat in NIT with such rank. The ideal percentile to get seat in NIT for ST category candidate is in between 94-96 percentile. To check the previous year cut off click on the link given below

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

Considering the previous year qualifying cut off for JEE Main you may qualify in JEE Main. The cut off percentile for ST category was 39.0696101 and this year it is expected to be in between 40-45 percentile. If you wish to get admission in an IIT you can prepare for JEE Advanced.  Cut off depends on the total number of candidates appeared, difficulty level of examination and total number of seats available etc. It may increase or decrease depending on these factors.