CAT 2026 Correction Window Opens at IIM Indore – What You Must Fix Today

By the Shiksha Nerd Counselling Team · 6 October 2026 · ~4 min read

The CAT 2026 correction window launches on Oct 5 at iimcat.ac.in. IIM Indore’s new guidelines let you amend key details – here’s the exact impact for every MBA aspirant.

On Monday, 5 October 2026, the CAT 2026 correction window went live on the official portal iimcat.ac.in, as announced by IIM Indore. The institute released a step‑by‑step guide that tells candidates exactly what they can change before the final lock‑in.

For anyone who has ever hit ‘submit’ and then spotted a typo in their roll number or a wrong percentage, this window is a lifeline. A single error can stall the short‑listing process, push you into a different programme, or even disqualify you when the IIMs cross‑verify data with university records.

What’s different this year?

Earlier CAT cycles closed the application permanently once the submit button was pressed – no edits, no second chances. The 2026 cycle flips that script: from the moment the correction window opens, you can revisit the form and amend specific sections. This shift acknowledges the reality that hundreds of applicants discover minor mistakes only after the deadline has passed.

However, the change is not a free‑for‑all. Only the fields listed in IIM Indore’s guideline are open for editing; the test score, percentile, and the date of the CAT itself remain locked. The portal will refuse any attempt to alter those immutable items.

Exactly which fields can you edit?

The official notice spells out the editable categories:

• Personal details – name spelling, date of birth, gender, phone and email.
• Academic credentials – board or university name, percentage/CGPA, year of passing.
• Work‑experience entries – employer name, designation, and duration.
• Programme preferences – the order in which you rank MBA, Executive MBA, or specialised tracks.
• Any optional essay or statement of purpose that you uploaded.

Everything else, especially the CAT percentile and the test‑date field, stays untouched. This means you cannot ‘boost’ your score after the fact; you can only ensure the surrounding data correctly reflects your profile.

When does the window close?

The portal displays a clear cut‑off date and time as soon as you log in. The announcement only says “the window opens today” and that the deadline will be shown on the dashboard; therefore, you must rely on the date shown in the official notification for the exact end point. Historically, IIM Indore has sealed the window within a few days, often before the weekend, to give admissions committees time to process the final data.

Because server traffic spikes during the last hours, a counsellor’s practical tip is to finish your edits at least a day before the deadline. Waiting until the final minutes can lead to temporary lock‑outs, forcing you to scramble for a backup plan.

Counsellor’s perspective – trade‑offs and who should act

From a counselling desk, the advice is simple: if you spot any discrepancy in the editable sections, correct it immediately. The risk of leaving a mistake outweighs the small time investment required to log in and submit the revised form.

That said, not every applicant needs to rush to the portal. If your application is already spotless – for example, you have double‑checked every number and your programme preference order is exactly how you want it – you might choose to leave the form as is and focus on preparing for the next stage, such as GD/PI. Changing programme preferences at the last minute can also backfire if you unintentionally push a less‑desired course higher in the list.

Another trade‑off is the psychological cost. Some candidates, after a stressful CAT, prefer to move on rather than reopen the application and risk making a new mistake. In those cases, a counsellor would suggest weighing the marginal benefit of a tiny correction against the anxiety of re‑entering data.

Finally, remember that the correction window does not help if the error lies outside the listed fields – for instance, an incorrect percentile or a missing test‑date cannot be fixed. Those candidates must accept the record as submitted or consider re‑applying in the next cycle.

What should you do now?

1. Gather your mark sheets, degree certificates and any employment letters. Have them open on a separate screen for quick cross‑checking.
2. Log in to iimcat.ac.in using the credentials you created during the original application.
3. Navigate to the “Application Edit” link that appears on the dashboard once the window is active.
4. Verify each editable field against your documents. Tick off the checklist provided in the IIM Indore PDF as you go.
5. Submit the revised form and download the receipt PDF; it carries a timestamp that proves you met the deadline.
6. If the portal throws an error, screenshot it and email the support address mentioned in the same page – the helpdesk is active until the window closes.

Frequently asked questions

Can I change my CAT percentile after the correction window opens?

No. The percentile is a test‑score element that the portal locks immediately; only personal, academic and preference fields can be edited.

What if I miss the deadline?

The application freezes in its original state. Any mistake you left uncorrected will stay on record throughout the admission cycle.

Is there any fee for making these corrections?

The guidelines do not mention any additional charge for the correction process.

Reported across 8 news outlets including Business Standard, Telegraph India, Education Times. Details can change — always confirm dates and fees on the official website.