The CAT 2026 correction window is expected to open after the registration deadline of September 15, 2026. IIM Indore has not yet announced the exact correction-window dates.
Based on recent CAT application correction trends, candidates are expected to get an opportunity to edit their photograph, signature and test city preferences. However, the final list of editable fields and the correction dates will be confirmed by IIM Indore when the edit window opens.
CAT 2026 registration closes on September 15, 2026, at 5:00 PM. Candidates who want to use the correction facility must first submit the application and pay the registration fee within the registration period.
| Direct Link: CAT 2026 Candidate Login at iimcat.ac.in |
Related Links:
- CAT 2026 Form Correction: Expected Late September, Editable Fields and How to Edit
- CAT Registration 2026: Last Date Sept 15, Apply Online, Direct Link at iimcat.ac.in
- CAT 2026 Login: Portal Link at iimcat.ac.in, How to Login and Forgot Password
CAT 2026 Correction Window: Key Summary
- The correction window is expected to open after September 15, 2026.
- Exact CAT 2026 correction dates have not yet been officially announced.
- Photograph, signature and test city preferences are expected to be editable, based on recent CAT cycles.
- Academic details, category, date of birth, email ID and mobile number are generally not editable through the correction window.
- Only candidates who successfully submitted the application and paid the fee can use the correction facility.
- No separate correction fee was charged in recent CAT correction windows.
- Candidates should not rely on a fixed four-day duration because the correction period has varied across recent years.
What is the CAT 2026 Correction Window?
The CAT 2026 correction window is a short reopening of the submitted form on iimcat.ac.in. It comes a few days after the registration deadline and covers three fields.
- The window is not a second registration, and it does not open a new application.
- A candidate who left the fee unpaid on September 15 cannot open the edit link.
IIM Indore announces the CAT 2026 correction window in a separate press release.
Check: CAT 2026 Application Form Errors: Wrong Category, Photo Mismatch and How to Fix
Where to Check the CAT 2026 Correction Window Update
The correction link appears under Candidate Login on the CAT website when the window opens.
The CAT 2026 Information Bulletin names the CAT website and the help desk as its information sources.
Source: CAT 2026 Information Bulletin Official PDF
The official websites to check are:
- iimcat.ac.in – the CAT 2026 portal, where the edit link sits under Candidate Login.
- iimidr.ac.in – the IIM Indore website, which publishes the CAT 2026 press releases.
Ques. Where will the CAT 2026 correction window link appear?
Ans. Under Candidate Login on iimcat.ac.in, behind the same User ID and password used at registration. The link is visible only while the window is open.
CAT 2026 Correction Window Expected Dates
The CAT 2026 correction window is expected in the last week of September or the first week of October 2026. The CAT 2025 window opened 14 days after that cycle closed.
| CAT 2026 Event | Date | Status |
|---|---|---|
| Registration last date | September 15, 2026, 5:00 PM | Confirmed |
| Correction window opens | Last week of September 2026 | Expected |
| Correction window closes | Four days after it opens, at 5:00 PM | Expected |
| Test city allotment | After the last date of registration | Confirmed |
| Admit card download | November 4 to November 29, 2026 | Confirmed |
| CAT 2026 exam day | Sunday, November 29, 2026 | Confirmed |
Therefore, candidates should expect a short correction window of around 3–4 days based on recent cycles, but the CAT 2026 duration is not confirmed.
Read More:
CAT 2026 Exam Date November 29 Confirmed by Trends: Full Schedule and Slot Details
Ques. When will the CAT 2026 correction window open?
Ans. In the last week of September or the first week of October 2026, on the pattern of recent cycles. IIM Indore puts out a press release when the link goes live.
Ques. How long does the CAT 2026 correction window stay open?
Ans. Four days in each of the last four cycles. Every one of those windows shut at 5:00 PM on the last day, with no extension.
CAT 2026 Correction Window Photo and Signature Specifications
The photograph must sit within 1200 x 1200 pixels and 80 KB. The registration guide sets the same 80 KB ceiling for the signature.
| Requirement | Recent CAT Specification |
|---|---|
| Photograph dimensions | Up to 1200 × 1200 pixels |
| Signature dimensions | 80 mm × 35 mm |
| File format | JPG/JPEG |
| Signature file size | Up to 80 KB |
| Minimum resolution | 150 pixels/inch |
| Background | White/light background |
The same photograph is affixed on the admit card, so a poor upload is worth replacing in the window.
Read More:
- CAT 2026 Documents Upload Guidelines: Check Photo Size, Dimension and Format
- CAT 2026 Application Form: Step-by-Step Guide, Documents and Photo Specs
Ques. What photograph size does the CAT 2026 form accept?
Ans. Up to 80 KB in JPG or JPEG, within 1200 x 1200 pixels. The image needs 150 pixels per inch, a white background and a date within six months.
How to Edit the CAT 2026 Application Form
The edit runs in nine steps on iimcat.ac.in, from the login to the saved confirmation page.
- Open iimcat.ac.in once IIM Indore announces the correction window and click Candidate Login.
- Enter the User ID and password received at registration, then clear the captcha.
- Open the application dashboard and select the edit link shown against the CAT 2026 form.
- Upload a fresh photograph if the earlier one was blurred, cropped badly or over six months old.
- Upload a fresh signature if the earlier scan was faint or ran outside the box.
- Change any of the five test city preferences, keeping the order of preference in mind.
- Preview the form and confirm that every corrected field shows the new value.
- Save the changes well before the closing time, since no extension is granted.
- Download the updated confirmation page and keep it with the payment receipt.
CAT Correction Window Dates in Previous Years: 2022-2025
Every CAT edit window since 2022 has run for four days, and each one shut at 5:00 PM.
| CAT Cycle | Conducting IIM | Registration Closed | Edit Window | Days Open |
|---|---|---|---|---|
| CAT 2022 | IIM Bangalore | September 21, 2022 | September 23 to 26, 2022 | 4 |
| CAT 2023 | IIM Lucknow | September 21, 2023 | September 25 to 28, 2023 | 4 |
| CAT 2024 | IIM Calcutta | September 20, 2024 | September 27 to 30, 2024 | 4 |
| CAT 2025 | IIM Kozhikode | September 20, 2025 | October 4 to 7, 2025 | 4 |
| CAT 2026 | IIM Indore | September 15, 2026 | Expected in late September | Expected 4 |
The wait after registration has grown from two days in CAT 2022 to 14 days in CAT 2025.
Read More: How Many Students Applied in CAT 2026 Registration
Ques. Does CAT open a correction window every year?
Ans. The IIMs have opened one in each of the last four cycles, from CAT 2022 to CAT 2025. Each window came after the registration deadline.
Ques. Which IIM decides the CAT 2026 correction window dates?
Ans. IIM Indore, which is conducting CAT 2026. The convening IIM changes every year and sets its own schedule for the edit window.
Who Can Use the CAT 2026 Correction Window and What It Costs
Only a candidate who paid the fee of Rs 2,700 or Rs 1,350 can open the edit link.
- Only applicants who have completed the payment have been let into the window.
- The window has never carried a separate correction fee, and none is expected.
- The registration fee stays non-refundable, whether or not the window is used.
- A candidate who missed the September 15 deadline has no route back into the form.
Read More: CAT 2026 Application Fee Payment Failed? Check What to Do Next
What Details Can Be Edited in the CAT 2026 Correction Window?
The correction window reopens three fields, and a fourth appears only when an IIM joins the cycle late.
- A fresh photograph can be uploaded if the original image has a problem.
- Candidates can update their signature if the uploaded image is unclear.
- Test-city preferences can be modified if IIM Indore enables the field.
- A correction does not guarantee a particular test city because allotment remains subject to availability.
| Field | CAT 2026 Status |
|---|---|
| Photograph | Expected to be editable |
| Signature | Expected to be editable |
| Test city preferences | Expected to be editable |
| Name | Not expected to be editable |
| Date of birth | Not expected to be editable |
| Category | Not expected to be editable |
| Email ID | Not expected to be editable |
| Mobile number | Not expected to be editable |
| Academic details | Not expected to be editable |
| Work experience | Not expected to be editable |
| IIM/programme choices | Not expected to be editable |
Ques. Can the test city be edited in the CAT 2026 correction window?
Ans. Yes. All five preferences reopen, in any order. IIM Indore allots one city after registration closes, and an allotted centre is not moved.
Ques. Can a new IIM programme be added during the CAT 2026 correction window?
Ans. Only if an IIM joins the cycle late. That has happened once in the last four cycles, and the programme appeared inside the window.
What Cannot Be Edited in the CAT 2026 Application Form?
The official CAT 2026 Registration Guide says no change is allowed once the payment is made. Seven groups of fields close at that point, from the name to the work experience entry.
| Field | Expected CAT 2026 Status | What Candidates Should Do |
|---|---|---|
| Name | Not expected to be editable | Contact the CAT help desk if there is a genuine error |
| Date of birth | Not expected to be editable | Contact the help desk with documentary proof |
| Category | Not expected to be editable | Verify before final submission |
| Class 10 details | Not expected to be editable | Check against the marksheet before payment |
| Class 12 details | Not expected to be editable | Check against the marksheet before payment |
| Graduation marks | Not expected to be editable | Verify with the final/available marksheet |
| Email ID | Not expected to be editable | Keep the registered email active |
| Mobile number | Not expected to be editable | Keep the registered number active |
| Work experience | Not expected to be editable | Verify dates and duration before submission |
| IIM/programme choices | Not expected to be editable | Review choices before payment |
The bulletin adds that incorrect information found at any stage disqualifies the candidate.
Read More: CAT 2026 Eligibility Criteria: 50% Marks Rule, Final-Year Students and Reservation
Ques. What should a candidate do about a wrong name in the CAT 2026 form?
Ans. Write to the CAT help desk on 1800 210 0175 with the Class 10 certificate. The name field does not open on the portal at any stage.
Ques. Are academic marks editable in the CAT 2026 correction window?
Ans. No. The registration guide treats the submitted marks as final for every later stage. IIMs check them against the marksheets while shortlisting.
What to Do If a Locked Field Is Wrong in the CAT 2026 Form
If a candidate finds an error in a field that is not available for editing, the first step should be to contact the official CAT help desk.
Candidates should keep the following information ready:
- CAT application number
- User ID
- Registered email ID
- Registered mobile number
- Relevant supporting document
- Screenshot of the incorrect information, if required
Do not create another application simply because a mistake has been noticed unless the CAT authorities specifically instruct you to do so.
Also Check: CAT Registration Fees 2026: Category-wise Application Fee, Payment Methods and Refund Policy
CAT 2026 Form Mistakes: What Candidates Are Reporting on Reddit
On September 7, 2026, a candidate on r/CATpreparation reported ticking Yes for a second degree by mistake. The next section was filled as No. The form was already submitted and the field would not open.
A September 6 post came from a candidate who entered 83 percent for Class 12 instead of 85.5. The one reply advised filling the form once more, which means a second fee.
On September 8, a candidate asked whether to crop the white border of a 1200 x 1200 photograph. The reply was to crop it before uploading.
Collegedunia Tip: Check the Class 12 and graduation marks against the marksheet before paying. The expected edit window covers the photograph, the signature and the test cities only.
Free CAT 2026 Practice Material
Preparing for CAT 2026?
The CAT 2024 paper set the 68 question format expected in 2026, and CAT 2023 had 66.
| Year | Question Paper |
|---|---|
| CAT 2024 | CAT 2024 Question Paper with Slot-wise Answer PDFs |
| CAT 2023 | CAT 2023 Question Paper with Solutions PDF |
Sectional papers run 40 minutes each, and the full-length set runs 120 minutes.
| Section | Sample Paper |
|---|---|
| Verbal Ability and Reading Comprehension | CAT VARC Sample Papers with Solutions |
| Data Interpretation and Logical Reasoning | CAT DILR Sample Papers with Solutions |
| Quantitative Ability | CAT Quantitative Aptitude Sample Papers |
| Full-length paper | CAT Full-length Mock Tests with Solutions |
Tip: Keep one full-length paper for the correction window week, when the portal work is short.
CAT 2026 Correction Window FAQs
Ques. Can the CAT 2026 application form be edited after submission?
Ans. Not on the portal itself. The registration guide closes the form once the payment goes through, and only the edit window reopens three fields.
Ques. What details can be edited in the CAT 2026 correction window?
Ans. The photograph, the signature and the five test city preferences. Those were the fields the CAT 2025 window carried, along with a one-time IIM Guwahati option.
Ques. Does the CAT 2026 correction window charge anything?
Ans. No fee was charged in the CAT 2025 window, and none is expected in 2026. The registration fee itself is never refunded.
Ques. How many times can the form be edited during the CAT 2026 correction window?
Ans. The CAT 2025 notice set no cap on the number of edits. The version saved last is the one that counts when the window shuts.
Ques. Can the CAT 2026 exam centre be changed after allotment?
Ans. No. The bulletin allots one of the five preferred cities after registration closes, and it is not changed after that.
Ques. What happens to a candidate who misses the CAT 2026 correction window?
Ans. The submitted form remains as it was filed. The CAT 2025 notice ruled out any extension beyond the closing time of the window.
Ques. What if the wrong percentage was entered in the CAT 2026 form?
Ans. Academic fields do not reopen in the window. Candidates should write to the help desk and carry the marksheet to the IIM shortlisting stage.
Ques. Who can log in to the CAT 2026 correction window?
Ans. Candidates who submitted the CAT 2026 form and paid the fee before 5:00 PM on September 15, 2026. The login is the User ID issued at registration.
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