Summary: The UPSC CDS 2 2026 Provisional Answer Key has been released for candidates who appeared in the Combined Defence Services Examination (II), 2026. UPSC has published separate provisional answer keys for English, General Knowledge, and Elementary Mathematics.

CDS 2 2026 Answer Key: Objection Process

Candidates who find an incorrect answer, a discrepancy in the provisional key, or an issue with a question can submit a representation through the Online Question Paper Representation (QPRep) Portal within the prescribed period.

For CDS 2 2026, the representation window is reported as 16 September 2026 to 20 September 2026, up to 6:00 PM. Candidates should complete the process before the deadline because representations submitted after the closing time are not considered. 

Can You Raise an Objection Against the CDS 2 2026 Provisional Answer Key?

Yes. Candidates can submit representations against the CDS 2 2026 provisional answer key through the UPSC QPRep mechanism.

This process is different from sending an objection to a coaching institute. MKC and other institutes may publish unofficial answer keys and solutions for analysis, but an objection to the official UPSC provisional answer key must be submitted through the procedure prescribed by UPSC.

The introduction of provisional answer keys and an online representation mechanism is part of UPSC's revised approach to releasing answer keys before the completion of the recruitment cycle. The same process was used for the CDS 1 2026 provisional answer key, when UPSC opened its Online Question Paper Representation Portal for candidates to raise objections.

CDS 2 2026 Answer Key Objection Dates

The provisional answer key released by UPSC is available separately for English, General Knowledge and Elementary Mathematics. 

How to Raise Objections Against CDS 2 2026 Answer Key?

Candidates who believe that an answer given in the UPSC provisional answer key is incorrect should use the prescribed Online Question Paper Representation Portal (QPRep).

Step 1: Check the UPSC Provisional Answer Key

First, download the official CDS 2 2026 Provisional Answer Key from the UPSC website.

UPSC has released separate PDFs for:

• English
• General Knowledge
• Elementary Mathematics

The official UPSC page currently lists all three papers under the CDS 2 2026 provisional answer key. 

Step 2: Match Your Question Paper

Before objecting, carefully match the answer key with the question paper you received in the examination.

CDS question papers are issued in different booklet series. Therefore, candidates should verify the question number, paper, and booklet series before submitting a representation.

An incorrect question-number reference can lead to an objection being made against the wrong question.

Step 3: Identify the Question You Want to Challenge

Check the questions where you believe the provisional answer is incorrect.

Candidates should not object simply because their selected answer differs from the answer given by UPSC.

A representation should be based on a specific, reasoned discrepancy in the question or answer.

Step 4: Collect Supporting Evidence

Before submitting the representation, candidates should verify the disputed question using reliable sources.

Depending on the subject, supporting evidence may include:

• Standard textbooks
• Government publications
• Official reports
• Authoritative reference books
• Official websites or documents
• Standard mathematical rules, formulas, or established concepts

For a GK question, for example, an official government source may provide stronger supporting evidence than an unverified website.

For Mathematics, candidates should clearly verify the calculation, formula, or mathematical principle involved.

For English, the representation should clearly explain the grammatical, vocabulary, or language-related issue involved.

Step 5: Submit the Representation Through QPRep

Candidates should use the UPSC Online Question Paper Representation Portal (QPRep) for submitting their representation.

The reported CDS 2 2026 process requires candidates to select the relevant examination and submit the representation online. Current reports indicate that objections through email, post, or handwritten submissions are not the prescribed method for this process. 

Step 6: Mention the Question and Your Reason Clearly

While submitting a representation, candidates should provide the relevant details of the disputed question and clearly explain why the answer given in the provisional key should be reconsidered.

A useful representation should be:

• Specific
• Fact-based
• Supported by reliable evidence
• Related to the exact question
• Submitted within the prescribed deadline

Avoid submitting the same issue repeatedly or raising an objection without supporting reasoning.

Step 7: Submit Before the Deadline

For CDS 2 2026, the reported deadline for submitting representations is 20 September 2026, up to 6:00 PM. 

Candidates should not wait until the final hours to submit their representation. After submission, save any acknowledgement or confirmation generated by the portal for future reference.

What Can Be Challenged in the CDS 2 2026 Provisional Answer Key?

A candidate may submit a representation when they identify a genuine issue with an answer or question in the provisional key.

Possible grounds may include:

The purpose of the representation process is to allow UPSC to examine disputed questions before the answer key is finalised.

Is There a Fee to Challenge the CDS 2 2026 Answer Key?

Candidates should follow the instructions displayed on the official QPRep portal at the time of submission. Current reports on the CDS 2 2026 representation process do not identify a separate objection fee. 

Candidates should rely on the instructions shown on the official UPSC portal rather than information circulated through social media or coaching groups.

Can You Challenge the MKC Answer Key?

No separate UPSC objection process is required for an MKC unofficial answer key.

MKC's answer key is intended to help candidates analyse their performance and estimate their probable score after the examination. If a candidate believes an MKC solution needs correction, that is different from challenging the official UPSC provisional answer key.

For an official UPSC objection, candidates must use the procedure prescribed by UPSC.

What Happens After You Submit an Objection?

The representation process allows UPSC to examine objections raised against the provisional key.

The CDS 1 2026 process established an important distinction between the provisional answer key and the answer key ultimately used for evaluation.

UPSC's subject experts examine representations, and the finalised answer key is used for evaluation. Therefore, candidates should not treat every answer in the provisional key as permanently final.

If UPSC determines that a question or answer requires correction, the final answer key may reflect the required change.

Provisional Answer Key vs Final Answer Key

The UPSC website currently identifies the CDS 2 2026 document specifically as a “Provisional Answer Key”, with separate PDFs for English, General Knowledge and Elementary Mathematics. 

Important Points Before Raising a CDS 2 2026 Answer Key Objection

Candidates should keep the following points in mind:

• Check the official UPSC provisional answer key first.
• Match the question with the correct paper and booklet series.
• Do not rely only on a coaching institute's answer key when deciding whether to challenge UPSC.
• Verify the disputed answer from an authoritative source.
• Give a clear reason for the representation.
• Keep supporting evidence ready.
• Submit the representation through the prescribed QPRep process.
• Submit it before 20 September 2026, 6:00 PM, as reported for the current CDS 2 2026 representation window. 
• Keep the submission confirmation for your records.

CDS 2 2026 Answer Key by UPSC: Download and Check

UPSC has officially listed the CDS 2 2026 Provisional Answer Key on its website. Candidates can access separate answer keys for English, General Knowledge and Elementary Mathematics.

After downloading the key, candidates can compare their attempted answers, calculate their estimated score according to the CDS marking scheme and identify any question that they believe requires representation.

Candidates should use the official UPSC website and QPRep portal for the latest instructions, deadlines and submission requirements.