You haven't mentioned your Category. Neverthless, if you belong to General Category, you will need atleast 500 marks and if you belong to Reserved Categories, you will need atleast 450. Now this is based on 2019 data andd cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. To help you with your NEET preparation, we have NEET Knockout packages that you can check at: https://learn.careers360.com/knockout-neet-may/.