In NEET UG, the score refers to the total marks obtained by a candidate out of 720 based on the marking scheme (4 marks for correct answers and −1 for incorrect answers). The percentile indicates the relative performance of the candidate compared to other test-takers. The rank, specifically the All India Rank (AIR), is assigned after all scores are calculated and candidates are arranged in descending order of marks. Admissions to medical colleges are primarily based on rank rather than just raw scores or percentiles.