Hi, admission to any college through management quota means paying the university some extra university to book a seat in the college for a desired course. The fee you pay will be a little higher than the regular fee. Not many colleges have the provision of giving scholarships or reduce fee for students who have aced the 12th qualifying examination with good marks. You will have to check with the university/contact the admission helpdesk for the same, in which you want to get admission in regarding their rules and criterias for lessening the fee for students who have performed well in boards.

Good Luck