CAT

Dear Rajiv,
For Executive- Post Graduate Program in Management at IIMB. Yes, you need to have submit your valid GMAT/GRE (CAT is not necessary) for admission. However, this is not the only criteria, apart from the GMAT score, you should to have at least 5 years of managerial work experience (not more than 12 years). Along with your GMAT score, you have to give 2 LORs, SOP followed by written test and personal interview.

Ideally, two years are sufficient to prepare for CAT. However, that's just a perspective, I know people who have aced the CAT with just 6-8 months of preparation. Everything depends on you, the amount of effort and dedication that you put in for the preparation. It is not necessary to have work experience in MBA, but definitely it helps.

The official website for CAT is:
https://iimcat.ac.in/per/g01/pub/756/ASM/WebPortal/1/index.html?756@1@1

Hello Meghana,
You will have to appear for at least one of the examinations. Top rated B-0Schools accept CAT, XAT, etc. Some average B-Schools accept MAT marks. MAT is conducted four times in a year. You have an option to appear for that.
Good luck.

Hello Rajvardhan,
For getting into a B-School to pursue MBA, you will have to appear for at least one of the examinations. MAT would be easier. Also, it is conducted 4 times a year.
Good luck.

FORE School of Management accepts CAT, XAT and GMAT scores.

Approximately 80 will help you in getting a fairly good college in from the reserved category seat.

CAT is the best one for getting into IIMS. CET for each state will lead you to private campuses.

Online classes are good for those who are working. Regular coaching will be good if you have enough time.