How to Fill the CAT Application Form 2026
Complete walkthrough of iimcat.ac.in — Registration, personal and academic details, IIM and test city preferences, photo/signature uploads, and fee payment. ₹2400 for General/NC-OBC, ₹1200 for SC/ST/PwD.
Updated August 2026
What you'll need before you start
- Recent colour photograph — plain white/light background, face clearly visible, JPG between 10 KB and 50 KB, 3.5×4.5 cm proportions.
- Signature on white paper — black or dark-blue ink, JPG between 10 KB and 50 KB, 3.5×1.5 cm proportions (landscape).
- Class 10, 12, and graduation marksheets — percentage/CGPA and year of passing for each.
- Work experience details — if applicable, employer name, designation, and period (in months).
- Category certificate — if applying under NC-OBC/SC/ST/PwD, keep the certificate number and issuing authority handy.
- List of preferred IIMs and test cities — research IIM shortlisting criteria before applying to maximise the value of your selections.
- Debit card / credit card / net banking / UPI — ₹2400 fee (General/NC-OBC) or ₹1200 fee (SC/ST/PwD).
CAT 2026 file specifications
Only two uploads required. Both are validated on the portal — out-of-spec files are rejected at upload.
| Upload | Format | File size | Dimensions / proportions |
|---|---|---|---|
| Photograph | JPG | 10–50 KB | 3.5×4.5 cm (portrait) |
| Signature | JPG | 10–50 KB | 3.5×1.5 cm (landscape) |
IIM preferences matter — research before selecting
Each IIM has its own shortlisting formula that weights CAT score, academic background (Class 10, 12, graduation percentage), gender diversity, and work experience differently. Selecting IIMs without checking their criteria wastes application slots. Review the previous year's shortlisting norms for each IIM on their official websites before finalising your list.
Step-by-step walkthrough
Step 1 — Registration
Open iimcat.ac.in and click Register. Enter your name (as on certificates), email ID, and mobile number. Verify your email via OTP and your mobile via a separate SMS OTP. Set a password and complete registration.
Use an email address you actively monitor — CAT sends admit card download links, result notifications, and IIM shortlist emails to this address. A Gmail or institutional email works equally well; avoid disposable addresses.
Tools used in this guide
Why use BharatTools for CAT document preparation?
Every BharatTools tool runs locally in your browser — your photo and signature never leave your device. Open DevTools Network tab while you compress: zero upload requests. Your candidacy documents are yours alone. You can also transfer files between your phone and laptop without WhatsApp using Quick Send, a peer-to-peer transfer that stores nothing.
Frequently asked questions
Ready to prepare your CAT photo?
The Image Compressor brings your photo and signature under the 50 KB limit in one step — no quality settings to fiddle with.
Specifications based on the CAT notification as of . Always cross-check the current year's notification at iimcat.ac.in before submitting — upload limits and fee amounts may change between cycles.