Hello. Always first priority is given to home state I.e., domicile students. And then depending on the cuttoff , suppose considering the cuttoff for a particular State then 15% seats are allotted to other state students ,15% to SC category, 7.5% for ST,27% for OBC. 85% is state quota which can be altered to accommodate more students. And every year State changes its proportion depending on its availability and intake.

Hope that helps!