Dear Bhukyayashwanthnayak,

As per the percentile your estimated ranking will be between 255750 to 287500. With this ranking it is difficult to get seat in nit though you belong to st category.  Cut-offs for colleges keep on changing every year based on various factors, refer the link below to get a detailed information on jee eligibility, and factors determining cut-off:

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

To have the best prediction of iiit/nit and private or government funded colleges that you are eligile for on the basis of your ranking , refer to the link below:

All the best for your future!