Hello aspirant,

Yes, you will be eligible to get a seat in the M. Tech mining branch in Osmania University, being a SC candidate. Since there is no cutoff trend for SC/ST candidates apart from General/OBC candidates, so according to your score in TSPGECET 2020, you will be easily getting an admission. There is no minimum marks to get eligible in the case of ST/SC candidates. But yes, in order to get qualified you must secure 45% in the qualifying examination according to your caste category.

This link will help you in providing more information-

https://engineering.careers360.com/articles/ts-pgecet-cutoff

Hope, it helps you.