Hello Saurabh,
For private colleges 80 percent seats are filled up via state quota counseling and admissions for those seats is conducted based on score of merit of NEET.
Whereas reamaining 30 percent seats are filled up by management and procedure for admission via management quota varies college by college as institute has all the authorities to fill those seats.
However I would suggest you to go for state counseling first as management quota seats doesn't offers various benefits offered by state quota counseling such as PwD , OBC, ST, SC and defense candidates reservation.
Also many colleges demand huge donations for management quota seats.
Hope this helps.
All the Best.
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