UPSC Civil Services Mains 2026 Application Form Correction Window Open, Update Details by June 29

UPSC CSE Mains 2026 Application Form Window: The UPSC CSE Mains 2026 application form window is now live. The Union Public Service Commission (UPSC) has announced that all candidates who cleared the Civil Services (Preliminary) Examination 2026 must log in to the official portal, update and/or reconfirm their details, and submit the application form for the written (Main)UPSC Civil Services Mains 2026 Application Form Correction Window Open, Update Details by June 29 Examination. This step is mandatory — candidates who fail to complete it within the given window will not be allowed to proceed to further stages of the exam. Here's everything qualified candidates need to know about the application window, eligibility, and the process to apply.

UPSC CSE Mains 2026 Application Form Window Latest Update

According to the official notice issued by UPSC, the window to update and/or confirm details in the common application form for the Civil Services (Main) Examination, 2026 (written part) has been made available on the Commission's website as follows:

This update directly affects candidates who were declared successful in the UPSC Civil Services Preliminary Examination 2026, the result for which was declared by the Commission on June 15, 2026, following the exam held on May 24, 2026.

UPSC CSE Mains 2026 Application Form Window: Who Needs to Apply

Only candidates whose roll numbers appear in the UPSC CSE Prelims 2026 qualified list are eligible and required to fill this form. As per UPSC's own instruction, this applies even to candidates who do not need to change any previously submitted detail — login and submission within the window is compulsory for everyone on the qualified list, since it generates the basis for further processing toward the Mains exam.

Steps to Submit/Update the UPSC CSE Mains 2026 Application Form

1. Visit the official UPSC portal: upsconline.nic.in

2. Log in using your existing One-Time Registration (OTR) credentials.

3. Locate the link for Civil Services (Main) Examination, 2026 — Updation/Confirmation of Application Form.

4. Review and update details where applicable, such as:

• Personal and contact details

• Scribe details (if applicable)

• Assistive Device requirements (for candidates with benchmark disabilities)

• Request for Question Paper in large font

5. Reconfirm details that do not require changes.

6. Submit the form before the deadline.

7. Save/download the confirmation page or acknowledgment for your records.

Note: Candidates should ensure a stable internet connection and complete the process well before the closing time on June 29 to avoid last-minute server load.

What Details Can Be Updated

Based on the official notice and related UPSC communication, the window primarily allows candidates to:

• Reconfirm core application details already submitted during the OTR/Prelims stage

• Submit or update Scribe details, where applicable

• Submit or update Assistive Device requirements for differently-abled candidates

• Opt for Question Paper in large font, where applicable

Candidates should note that this is not the stage for submitting optional subject choice, centre preference for Mains, or detailed biodata — those typically form part of a separate Detailed Application Form (DAF) process, which UPSC notifies separately closer to the exam. As of now, UPSC has not released a separate DAF notification for CSE Mains 2026; candidates should watch the official website for this update.

Why This Step Is Mandatory

UPSC has clearly stated that this is not optional. Candidates who do not complete the login-and-submission process within the stipulated window — even if they have nothing new to update — risk being excluded from further stages of the Civil Services (Main) Examination, 2026. There is no indication, as of now, of any extension to this window, so candidates are strongly advised not to wait until the last day.

UPSC CSE 2026 Highlights

What Happens Next

Once the application/confirmation window closes on June 29, candidates can expect UPSC to release further communication regarding:

• e-Admit Card for the Mains examination (date not yet announced)

• Exam centre details

• Any further DAF requirement (if applicable)

UPSC has not yet announced the exact date for the release of the Mains admit card. Candidates are advised to keep checking upsconline.nic.in and upsc.gov.in regularly for updates, as the Commission typically releases admit cards closer to the exam date.