Hey Eby Johnson,

Well to get rank below 100 in CUSAT your marks must be more than 600 out of 750. However it is not guranteed because these trends change every year. Because it is completely based on the no. Of students writing the CUSAT and other factors too. So, you cannot  fix on that score exactly. You can check the previous year cutoff’s of CUSAT here:

https://d2cyt36b7wnvt9.cloudfront.net/exams/wp-content/uploads/2019/01/17165719/CUSAT-Result-Cut-Off-2018-Embibe.pdf

How the CUSAT rank will be calculated is given here:

The Formula for calculating the CUSAT rank is

[(n+1-p)/n)]xSx100

n= No. of students appearing for a  particular subject

p= Position according to the CAT score

s= Actual score secured by the students