Hello,

You will get a variety of courses online that will help you to prepare for CAT examination. Most of the free courses are introductory ones and will be able to provide information on the tips, the subject weightage and the way you need to prepare in order to crack CAT. There are certain site like Udemy , Career Launcher, for which you need to register in order to get full benefit of all the video tutorials offered. Not all of them are free.

So choose wisely.