You haven't mentioned your Category. Nevertheless, the General Qualifying cut offs for 2020 have been as follows:

General Category/EWS: 720-147

OBC: 146-113

SC: 146-113

ST: 146-113

General Category/EWS-PWD: 146-129

These are the qualifying cut offs and the admission cut offs change every year depending on various factors like as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. Compared to 2019, the NEET 2020 cut offs have changed considerably higher than expected. With the top score being 720 which is 19 marks greater than 2019's top score, it is difficult to predict chances. But based on the analysis of the experts, on the and going by previous years data, if you belong to General Category, you will need more than 450 and if you belong to 375. Scores less than this might get you a seat in Private Colleges. Having said that, this is based on 2019 data and cut offs change every year. But anything less than 250, you may have to reappear for NEET in 2021.