High Competition: 

The CAT is a highly competitive exam, with millions of aspirants applying every year. The competition level is particularly high for the top IIMs, where the acceptance rates are typically less than 1%. 

Lack of Official Syllabus:

The CAT syllabus covers a wide range of topics from mathematics, data interpretation, and verbal ability to reading comprehension and logical reasoning 

Negative Marking: 

The CAT has a negative marking scheme, which means that aspirants are penalized for incorrect answers. 

High Sectional Cut-Offs: 

Aspirants are required to score a minimum percentage in each section to qualify for the overall cut-off.

Time Management:

The CAT is a computer-based test (CBT) with a time limit of two hours. This means that aspirants have to manage their time effectively to solve all the questions within the given time frame.