Hey there!

With 450 marks in NEET, you have very good chance of getting admission in the private medical college in Madhya Pradesh. As far as getting benefits of Meghavi chatra yojana is concerned, for that you have to fulfill the many criterias that they have, if you fulfill the criteria then you can apply online from this link-

http://scholarshipportal.mp.nic.in/MedhaviChhatra/Public/Medhavi_Scholarship_Registration.aspx

To get details of private colleges you can get into based on your neet score, you can use the neet college predictor tool, here's the link for that- https://medicine.careers360.com/neet-all-india-college-predictor?icn=QnA&ici=qna_answer