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The rank of a candidate is determined by taking  various factors in to consideration such as total number of candidates appeared, highest score in the exam, normalized marks, tie breakers, lowest score and other such factors. The rank corresponding to a percentile may vary increase or decrease compared to previous year. The percentile vs rank trends changes every year depending on the factors mentioned above and it cannot be easily predicted until the JEE Main all sessions are concluded and final results are declared. So the rank vs marks vs percentile trend in 2021 is subjected to change.