The factors that determine your rank in CLAT are your CLAT score, your CLAT All India Rank and your Category Rank. And it is the CLAT Category rank that actually helps in being shortlisted for NLUs. And the Category rank keeps changing on the basis of no.of Candidates who appeared for CLAT in that particular Category. So what might be the trend in 2018 or 2019 might not be the same in 2020 because cut offs change every year along with the top score and no.of Candidates who appear for the exam. An All India Rank of 52762 is a Rank of 3653 under SC Category in 2019. And in 2019, under SC Category the Opening rank was 144 and the Closing rank was 3010. These are All India Ranks. This might be below 500 under SC Category rank. It is difficult to predict marks vs Category rank because we do not know how many Candidates from that Category appear for the exam and how many would qualify.