UPSC NDA & CDS 1 2026 provisional answer key will be issued on 16 April 2026. Check the official corrigendum, QPRep objection process, important dates, and how candidates can raise challenges online within the given window.

UPSC NDA/CDS 1 2026 Answer Key Release Date Out: The Union Public Service Commission (UPSC) has officially announced a corrigendum regarding the NDA 1 2026 and CDS 1 2026 exams. 

As per the latest update, the provisional answer key for both NDA and CDS 1 2026 exams will be released on 16 April 2026.

Candidates who will appear for the exam will also get the opportunity to raise objections through the official Online Question Paper Representation Portal (QPRep) within the stipulated time.

UPSC NDA & CDS 1 2026 Answer Key Release Date

As per the official corrigendum released by the UPSC:

• NDA 1 2026 Provisional Answer Key: 16 April 2026

• CDS 1 2026 Provisional Answer Key: 16 April 2026

Aspirants can download the NDA/CDS 1 answer key from the official UPSC website once announced. This helps them tally their marked responses for tentative score calculation.

UPSC QPRep Portal- What Candidates Should Know

The Online Question Paper Representation Portal (QPRep) is provided by UPSC to ensure fairness in the examination.

Key Points:

• UPSC provides an opportunity to the aspirants to make representations on the questions asked in the Papers in a time frame of 7 days (a week), i.e. from the next day of the exam date to 6.00 p.m. of the 7th day. 

• Such representation must be submitted through the “Online Question Paper Representation Portal (QPRep)” only via the official URL, which is https://upsconline.gov.in/miscellaneo us/QPRep/. 

• No representation by email/post/hand or by any other mode shall be entertained.

• No representation shall be accepted under any situation after this window of 7 days is completed.

NDA & CDS 1 2026 Objection Window (Answer Key Challenge)

UPSC has also shared a separate window for filing objections against the provisional answer key:

• Start Date: 18 April 2026

• Last Date: 22 April 2026 (06:00 P.M)

Key Points:

• UPSC offers an opportunity to the candidates who appeared in the exam to challenge the questions asked and provisional answer Keys in a time frame of five (05) days from 18.04.2026 to 22.04.2026 (06:00 P.M)

• The appeared candidates must log in to the website (upsconline.nic.in) and submit their representation(s), if any, under the tab ‘Examinations > Representations on Question Paper & Provisional Answer Keys’. 

• No representation by email/post/hand or by any other mode shall be entertained under any circumstances. 

• No representation shall be accepted under any situation after this window of five (05) days is completed. 

• The Provisional Answer Keys will be declared on 16.04.2026.

NDA vs CDS 1 2026 Answer Key Process

NDA 1 2026:

• NDA 1 2026 Answer key release: 16 April 2026

• Objection window: 18-22 April 2026

• Mode: Online only at the official website.

CDS 1 2026:

• CDS 1 2026 Answer key release: 16 April 2026

• Objection window: 18-22 April 2026

• Mode: Online only at the official website.

Important Instructions for Candidates

• Only online submissions will be accepted

• No offline/email objections permitted.

• Each objection should be supported with valid evidence.

• Submit before the last date (no extension)

• You can submit the objections only via the official website.