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Management Quota means these seats are reserved for those people who actually didnt qualify the eligibility criteria for getting a seat in college but are willing to spend almost two to four times the actual fee of the college. It is like the direct admission process in colleges. to know more check the link below 

https://www.careers360.com/question-what-is-the-meaning-of-management-quota

while its not usefull you pay high fee and donations