Life at an IIM
Career Launcher is good enough and is closest to CAT difficulty level, but IMS has a much larger number of test takers. So, decide your preference on that basis.
TIME, CL, IMS - all three are good.
CL & IMS are at par with CAT, TIME is harder.
All have a decent number of test-takers - TIME & IMS have slightly higher.
Ok thanks a lot for your suggestions😊