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CAT vs GMAT for IIM Admission: Which Exam Should You Take?

Updated 2 July 20257 min read

Should you take the CAT or the GMAT to get into an IIM? It depends on which programme you're targeting. This guide clarifies where each exam is accepted, the key format differences, and how to choose based on your profile and goals.

Where each exam is accepted

The CAT is the standard gateway to the flagship two-year MBA / PGP programmes at all IIMs. The GMAT is commonly accepted for one-year executive MBA programmes and for candidates applying from abroad or with significant work experience.

Format and content differences

The CAT emphasises quantitative aptitude, logical reasoning, data interpretation, and verbal ability under tight time pressure. The GMAT is a computer-adaptive test with quantitative, verbal, and data insights sections, taken on demand throughout the year.

Scheduling and attempts

The CAT is offered once a year, so timing matters. The GMAT can be taken multiple times across the year, giving experienced professionals more flexibility to fit it around work.

Which should you choose?

If you want the flagship two-year programme straight after undergrad or early in your career, take the CAT. If you're an experienced professional targeting a one-year executive MBA, the GMAT is often the better and more flexible route.

Frequently asked questions

Can I get into an IIM with a GMAT score?
Yes, for many one-year executive MBA programmes and some international admissions. The flagship two-year programmes generally require the CAT.
Is the CAT harder than the GMAT?
They test different skills. The CAT is known for time pressure and quantitative difficulty; the GMAT is adaptive and emphasises reasoning. Difficulty depends on your strengths.
Which exam has more attempts per year?
The GMAT can be taken multiple times a year, while the CAT is conducted only once annually.