The raw score in JEE Main refers to the actual marks obtained by a candidate based on the number of correct and incorrect answers according to the marking scheme. However, since the exam is conducted in multiple sessions with different question papers, the National Testing Agency converts raw scores into normalized percentile scores. The percentile score represents the percentage of candidates who scored equal to or less than a particular candidate in that session. This normalization ensures fairness when comparing performance across sessions with different difficulty levels. The final All India Rank is determined using the best percentile score obtained by a candidate across sessions.