Common Admission Test (CAT) 2026 registration has been extended to September 22, 5 pm. IIM Indore confirmed the revised cut-off, adding four days beyond September 15. A brief post‑registration edit window will follow. Apply only through the official portal after checking updated instructions.
This extension especially helps final‑year students, first‑time applicants, and those finalising category certificates. Do not wait for another extension; test‑city allotment tightens near closure. Expect peak traffic on the last evening. Mark the exact deadline—September 22, 5 pm—and finish payment and submission together.

If your profile is ready except category certificates, verify formats and issue dates today. Non‑Creamy Layer OBC and Economically Weaker Section certificates are generally accepted only if issued after April 1, 2026. Upload PDFs in the prescribed Central format. Outdated or incorrect certificates may shift you to Unreserved during admission rounds.
Registration fee is Rs 2,700 for General, EWS, and NC‑OBC candidates. It is Rs 1,350 for SC, ST, and Persons with Benchmark Disabilities candidates. Pay online and retain the e‑receipt. Keep scanned photo, signature, valid category certificate, and government ID ready before payment.
Upload.jpg or.jpeg files up to 80 KB each, following the portal table. Recommended dimensions are 1200 by 1200 pixels for both images. Use a recent colour photograph on a plain background; avoid shadows and selfies. Sign in dark ink on white paper for clarity.
After registrations close, IIMs open a short correction window. Historically, only photograph, signature, and test‑city preferences are editable; personal or academic data remains locked. As an earlier media release noted, “a very short edit window will be made available.” Plan entries accordingly and double‑check irreversible sections now.
Frequent issues include name or date‑of‑birth mismatches, CGPA conversion mistakes, and outdated NC‑OBC or EWS certificates. Non‑compliant images trigger upload failures. Payment without a confirmed e‑receipt leaves applications incomplete. Submit earlier than evening peak, verify uploads, and download the final form and acknowledgment.
The window now shuts on September 22 at 5 pm, with no grace time. Complete the form, upload compliant images, and confirm the Submitted status after payment. Then monitor iimcat.ac.in and your email for edit‑window dates and admit‑card updates. Early, accurate submissions safeguard your preferred test city.