Hey!

both aided and unaided have some seats that are only filled with counselling process and mark based system irrespective of caste reservation. while there are some seats that are given based on both marks and caste reservation. but in un aided colleges, there are few seats that are given in management quota which mostly is given based on the capitation fee you give to the college. there is no other criteria which is considered during any admission. maybe some recommendation works during admission in unaided colleges.

i hope i answered you