One of the most common questions among MBA aspirants in India is: does ISB accept CAT score?
This confusion is natural because CAT is the primary entrance exam for IIMs and many top MBA colleges.
However, when it comes to Indian School of Business, the admission process works very differently.
In this detailed guide, you’ll get a 100% clear answer to whether ISB accepts CAT, why CAT is not accepted, which exams are valid instead, and what you should do if you only have a CAT score.
Quick Answer: Does ISB Accept CAT?
No. ISB does NOT accept CAT scores.
ISB accepts only GMAT and GRE scores for admission to its flagship PGP programme.
If you are planning to apply to ISB, a CAT score — no matter how high — cannot be used.
What You Will Learn in This Guide
Why This Confusion Exists
Many students assume CAT is accepted by ISB because:
- ISB is a top Indian business school
- CAT is accepted by IIMs
- CAT is India’s most popular MBA entrance exam
But ISB follows a global MBA admission model, not the traditional Indian MBA system.
Exams Accepted by ISB (OFFICIAL)
ISB officially accepts only:
GMAT (Graduate Management Admission Test)
GRE (Graduate Record Examination)
❌ CAT
❌ XAT
❌ NMAT
❌ SNAP
❌ MAT
CAT is NOT accepted under any condition.
CAT vs GMAT vs GRE (IMPORTANT COMPARISON)
Comparison Table: CAT vs GMAT vs GRE for ISB
| Feature | CAT | GMAT | GRE |
|---|---|---|---|
| Accepted by ISB | ❌ No | ✅ Yes | ✅ Yes |
| Exam Type | India-specific | Global MBA exam | Global graduate exam |
| Validity | 1 year | 5 years | 5 years |
| Focus | Speed + Quant heavy | Business-focused | Balanced |
| Used by | IIMs, Indian colleges | Global B-schools | Global universities |
| Suitable for ISB | ❌ | ✅ | ✅ |
This table clearly explains why CAT is not suitable for ISB.
Why ISB Does NOT Accept CAT Score
ISB’s admission philosophy is aligned with global MBA standards.
Key reasons CAT is not accepted:
1. CAT Is India-Specific
CAT is designed for Indian MBA colleges, mainly IIMs.
ISB competes globally with:
- Wharton
- INSEAD
- London Business School
👉 Hence, ISB needs a globally standardised exam.
2. CAT Does Not Measure the Right Skills
CAT focuses heavily on:
- Speed
- Quantitative aptitude
ISB values:
- Analytical thinking
- Verbal reasoning
- Leadership readiness
GMAT and GRE measure these skills better.
3. Applicant Pool Diversity
ISB attracts:
- International applicants
- Professionals from different countries
CAT is not taken internationally, making it unsuitable for ISB.
I Have a High CAT Score – Can I Still Apply to ISB?
Short answer: No.
Even if you have:
- 99+ percentile in CAT
- IIM interview calls
You must take GMAT or GRE to apply to ISB.
CAT score cannot be converted or substituted.
What Should You Do If You Have Only CAT Score?
Step 1: Decide Quickly
If ISB is your target, you need to:
- Register for GMAT or GRE
- Plan your attempt early
Step 2: Choose Between GMAT and GRE
- Choose GMAT if you are MBA-focused
- Choose GRE if you are considering other global programs too
Most ISB applicants prefer GMAT.
Step 3: Target a Safe Score
- GMAT safe score for ISB: 700+
- Competitive range: 680–760
Does ISB Prefer GMAT Over GRE?
Officially: No preference
Practically: GMAT is more common
Why GMAT is preferred by applicants:
- Designed for MBA admissions
- More business-oriented
- Widely accepted by B-schools
👉 GRE is equally valid, but GMAT is more popular.
Best Time to Take GMAT for ISB
If you are switching from CAT to GMAT:
- Take GMAT before Round 1 or Round 2
- Avoid last-minute attempts
- Leave time for a retake if needed
Early rounds = better selection + scholarships.
ISB vs IIMs: Exam Acceptance Comparison
| Institute | Accepted Exam |
|---|---|
| ISB | GMAT / GRE |
| IIMs (PGP) | CAT |
| IIMs (Executive) | GMAT |
| Global MBA Schools | GMAT / GRE |
ISB follows the global MBA admission model, not the CAT-centric one.
Common Myths About CAT & ISB
Myth 1: ISB sometimes accepts CAT
False. ISB never accepts CAT.
Myth 2: High CAT percentile can compensate
False. CAT is not considered at all.
Myth 3: CAT score helps in profile
False. GMAT/GRE is mandatory.
FAQs – Does ISB Accept CAT?
Does ISB accept CAT score for PGP?
No. ISB does not accept CAT for any programme.
Can CAT be used instead of GMAT for ISB?
No. CAT cannot replace GMAT or GRE.
Which exam is mandatory for ISB?
GMAT or GRE is mandatory.
Is GMAT compulsory for ISB?
Yes, unless you submit a GRE score.
Can I apply to ISB with CAT + work experience?
No. CAT score is not considered at all.
Does ISB accept CAT for executive MBA?
No. ISB accepts only GMAT or GRE across programmes.
