With a score of 450, your rank might be approximately between 82216-89872 . This is an expected rank range: https://medicine.careers360.com/articles/neet-result-marks-vs-rank . With this score, depending on the State you belong to, you can get a Government Quota seat in a Private Medical College. But if you want to reappear for NEET for a better score, you can take a drop because as of now, there is no upper age limit of NEET. For a complete list of colleges that you may have a shot at, please use our College predictor: https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer