Hey as per my idea CAT exam is conducted for taking admission in MBA college and here I am giving you its details

Eligibility
Candidate should be graduate from recognised university
Candidate can be of any stream
Final year candidate can also apply

Sections
Data interpretation
English
Reasoning
Aptitude

Selection criteria
Entrance test
Essay writing
Group discussion
Interview

Here I am giving you some tips to crack the exam
Be positive
Be confident
Manage time and speed
Maintain accuracy
Solve practice paper
Revise formulas
Take proper sleep