Filling the CAT Form 2025 is the first and most crucial step in your journey toward securing a seat in a top B-school. However, many aspirants often make small mistakes while entering details or uploading documents. To ensure that such errors don’t cost your attempt, the exam authorities provide a CAT Form 2025 correction window where you can edit specific details after submission.
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Aspirants must complete registration before the deadline to avoid last-minute issues. For detailed exam schedule and marking scheme, you can also check CAT Exam Details 2025.
Here’s how to complete the CAT Form 2025 registration:
- Visit Official Website – Go to iimcat.ac.in and click “New Candidate Registration”.
- Register with Basic Details – Enter your name, DOB, mobile number, and email ID. You’ll get a User ID & Password via SMS/email.
- Login and Fill Details – Use the credentials to log in and enter personal, academic, and work experience details.
- Upload Documents – Upload a passport-size photo, signature, and category/PwD certificate (if applicable) in the required format.
- Select Test Cities – Choose up to 6 preferred test cities in order of priority.
- Pay Fees Online –
- General/EWS/OBC – ₹2,400
- SC/ST/PwD – ₹1,200
Pay via debit/credit card, UPI, or net banking.
- Submit & Download Confirmation – Review all details, submit the form, and download the confirmation page for future reference.
Tip: Always double-check documents and details before submission, as only limited edits are allowed later.
For detailed admission process and eligibility criteria, refer to IIM Admission Criteria. You may also explore CAT 2026 Course for Students and Working Professionals to start your preparation while filling the form.
Before starting the CAT Form 2025 registration, candidates must keep all documents ready in the prescribed format. This ensures a smooth application process without last-minute errors.
Mandatory Documents to Keep Handy:
- Passport-Size Photograph
- Format: JPEG/JPG
- Dimensions: 30 mm (width) × 45 mm (height)
- File Size: 20 KB – 80 KB
- Requirements: White background, recent photo, face clearly visible, no shadows.
- Scanned Signature
- Format: JPEG/JPG
- Dimensions: 80 mm (width) × 35 mm (height)
- File Size: 20 KB – 80 KB
- Requirements: Black ink on white paper, scanned properly without blur.
- Category Certificate (If Applicable)
- For candidates applying under SC/ST/OBC-NCL/EWS/PwD categories.
- Format: PDF
- File Size: up to 200 KB
- Must be issued by a competent authority as per official guidelines.
- Academic Mark Sheets
- Class 10th and 12th mark sheets.
- Graduation or equivalent degree certificate (for final year students, provisional certificates are allowed).
- Details from these certificates (marks, year of passing, board/university) are needed while filling the form.
Tip: Store all scanned files in one folder on your laptop/PC before starting the registration to avoid upload errors.
To strengthen your preparation, refer to:
Yes, candidates can edit their CAT Form 2025 even after submission – but only during the official correction window announced by IIM Kozhikode.
Editable Details During Correction Window:
- Uploaded Photograph – In case the earlier photo is unclear, blurry, or does not meet size requirements.
- Uploaded Signature – If the signature is faint, not scanned properly, or not as per guidelines.
- Test City Preferences – Candidates can update/change their preferred test cities (up to 6).
Non-Editable Details (Locked After Submission):
- Candidate’s Name
- Date of Birth
- Mobile Number & Email ID
- Academic Records (10th, 12th, graduation marks)
- Category & Domicile details
Once submitted, these details cannot be modified, even during the correction window. Candidates must enter them carefully during registration.
Correction Window Timeline (As per notification):
- Opens: 23rd September 2025 (tentative)
- Duration: 2–3 days only
- Mode: Online, through the official CAT website (iimcat.ac.in)
Pro Tip: Don’t wait for the correction window to fix mistakes. Fill the form carefully the first time. Use the correction window only for minor edits like photo, signature, or test city changes.
For guidance on common errors and corrections, check CAT Application Form Correction 2025.
The CAT Form 2025 correction window is a crucial opportunity for aspirants to fix errors in their application form. The last date to make corrections is September 28, 2025 (11:59 PM). After this deadline, no further changes will be allowed under any circumstances. Therefore, candidates are strongly advised to carefully check all details before the correction window closes.
This facility ensures that mistakes in critical areas such as photo, signature, or test city preferences do not lead to rejection of the form or unnecessary complications during the exam process. Since the CAT Form 2025 acts as the official record for your candidature, even small errors can affect your exam-day experience.
CAT 2025 Correction Window Steps
Here’s a step-by-step guide to editing your CAT Form 2025 during the correction period:
- Visit the Official Website
Go to the official CAT 2025 portal when the correction window is active.
- Login with Credentials
Enter your CAT 2025 registered ID and password to access the application form.
- Access Form Correction
On the dashboard, click on the ‘Application Form Correction’ option to proceed.
- Edit Specific Sections
- Replace or re-upload a clear passport-size photograph if the earlier one did not meet specifications.
- Update your signature image if it was blurry or invalid.
- Change your test city preferences (up to 6 cities allowed) to ensure better accessibility on exam day.
- Save and Re-submit
After making the required changes, carefully save the corrections and re-submit your CAT Form 2025. Download the updated confirmation page for your records.
Note: No edits can be made to personal details such as name, date of birth, email ID, mobile number, or academic qualifications. Hence, ensure that all such details are accurate during initial registration.
One-to-One Counselling – Personalized guidance
The CAT Form 2025 process may feel complex, but with careful attention to details, you can avoid mistakes. And even if you make errors, the CAT 2025 correction window gives you a chance to re-upload your documents and change test city preferences.
Key reminders:
- Register before September 20, 2025
- Use the correction window (Sep 25–28, 2025) for edits
- Keep documents in the right format and size
- Double-check all details before submission
With this complete guide, aspirants on Coachify can confidently manage their CAT Form 2025 without stress.
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