It is necessary for the candidates to pass NEET entrance exam to be eligible for admission in MBBS/BDS programmes. For getting admission you need to apply the application form . The upper age is 25 years for General/OBC and 30 years for SC/ST categories.
Candidates should pass the 12th class with a PCB subject combination along with English subject from a recognized board.

Hey Aspirant.
See for getting admission in any of the private college under management quota one should be getting acquainted with the college and it's placement and study scenario. U should be going to the college and then discuss about the donation money as different college have different rates and other policies. Might be u be getting some of the concession in fees structure or Scholarship by ur entrance exam. I m providing u a link for ur help.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://medicine.careers360.com/articles/neet-cut-off/amp&ved=2ahUKEwih1JbL6obiAhUZ6nMBHccvDzEQFjAKegQIARAB&usg=AOvVaw13ncSIsRF6_r3F1MyqcLzL&ampcf=1
Ask if any query. Good luck