Hello Sonal Sharma,

Giving you the actual marks based on the percentile is not easy for anyone as the percentile go through many factors. Percentile score is based on the performance of candidates appeared for the test. But let me help you out by giving you the calculating formula :

Total percentile =    (No. of candidates appeared from the session raw  score ( less or equal than T1 score ) / total no. of candidates in the session )*100

Maths percentile =    (No. of candidates appeared from the session raw score ( less or equal than M1 score) / total no. of candidates in the session )*100

Physics percentile =   ( No. of candidates appeared from the session raw  score ( less or equal than P1 score) / total no. of candidates in the session )*100

chemistry percentile =    (No. of candidates appeared from the session raw  score ( less or equal than C1 score) / total no. of candidates in the session )*100

Also providing the link

https://engineering.careers360.com/articles/jee-main-marks-vs-percentile

Hope this effort is helpful..