UPSC News
UPSC Prelims 2026 Provisional Answer Key (Official) Out: Calculate GS & CSAT Marks
UPSC, for the first time, released the Provisional Answer Key for UPSC Prelims 2026 soon after the conduct of the examination. The announcement marks a significant procedural reform in one of India’s most competitive examinations and has generated considerable attention among UPSC aspirants across the country.
The development is particularly important for lakhs of candidates who appear for the UPSC Prelims every year, as it introduces an official mechanism for early answer key review and structured representation submission.
UPSC Prelims 2026 Provisional Answer Key (Official)— Direct Link
[Link is live for Provisional Answer Key released by UPSC]
Official -Download, UPSC Prelims Provisional Answer Key (GS Paper I)
Official- Download, UPSC Prelims Provisional Answer Key (CSAT Paper II)
UPSC Prelims 2026 General Studies Question Paper -1
Download UPSC GS Paper 1 2026 Question Paper PDF
UPSC Prelims 2026 CSAT Question Paper
Download UPSC Prelims CSAT 2026 Question Paper PDF
VisionIAS once again demonstrated its assessment expertise with a highly accurate UPSC Prelims 2026 Answer Key, trusted by aspirants across the country.
UPSC CSE 2026 Key Dates at a Glance
| UPSC CSE Event | Date / Deadline |
| UPSC Prelims 2026 Exam Date | May 24, 2026 |
| GS Paper I Timing | 9:30 AM – 11:30 AM |
| CSAT Paper II Timing | 2:30 PM – 4:30 PM |
| Provisional Answer Key Release | May 27, 2026 |
| Last Date for QPRep Objections | May 31, 2026, 6:00 PM |
| UPSC Prelims Result 2026 (expected) | A few weeks post-exam |
| UPSC Mains 2026 (scheduled) | August 21, 2026 |
How to Calculate Your UPSC Prelims 2026 Score
Once the provisional answer key is out, you can estimate your probable score using the marking scheme below.
GS Paper I (General Studies) — Marks Calculation
| Attempt Type | Marks |
| Correct Answer | +2 marks |
| Incorrect Answer | −0.66 marks (1/3 of 2) |
| Unattempted | 0 marks |
Formula: Score = (Number of Correct × 2) − (Number of Incorrect × 0.66)
Maximum Marks: 200 | Total Questions: 100
CSAT Paper II — Marks Calculation
| Attempt Type | Marks |
| Correct Answer | +2.5 marks |
| Incorrect Answer | −0.83 marks (1/3 of 2.5) |
| Unattempted | 0 marks |
Formula: Score = (Number of Correct × 2.5) − (Number of Incorrect × 0.83)
Maximum Marks: 200 | Total Questions: 80 | Qualifying Marks: 66 (33%)
Important: CSAT is qualifying in nature. If you fail to score 66 marks in Paper II, your GS Paper I score will not be evaluated, regardless of how well you performed.
A Practical Scoring Example
Say you attempted 75 questions in GS Paper I: 60 correct, 15 incorrect, 25 unattempted.
Score = (60 × 2) − (15 × 0.66) = 120 − 9.9 = 110.1 marks
Expected Cutoff for UPSC Prelims 2026
Actual cutoff will only be officially declared after the final result. For a detailed analysis of UPSC Prelims expected cut-off trends and past years’ official cut-offs, read: UPSC Prelims 2026 Expected Cut-Off by VisionIAS and Past Years’ Official UPSC Cut-Offs
UPSC Prelims 2026 Marks: Why Candidates Should Avoid Overinterpretation
Although the provisional answer key will help candidates estimate their scores, aspirants must avoid drawing final conclusions immediately.
Several factors continue to influence the final outcome:
- Revision in disputed answers after expert review
- Variation in actual cut-off
- Question deletions or answer modifications
- Differences in interpretation of complex questions
Therefore, candidates should use the provisional answer key primarily for informed assessment rather than absolute certainty.
Watch Detailed Analysis of GS Paper-1 by VisionIAS Faculty
Watch Detailed Analysis of CSAT 2026 by VisionIAS Faculty
How to Challenge the UPSC Provisional Answer Key
This is one of the most significant aspects of the 2026 reform. For the first time, you have a formal, structured mechanism to dispute answers — backed by academic evidence.
Step-by-Step: Using the QPRep Portal
Step 1: Visit the official UPSC Online platform
Portal: https://upsconline.nic.in/login Look for: “Online Question Paper Representation Portal (QPRep)”
Step 2: Log in with your UPSC credentials (registration ID and password)
Step 3: Identify the question(s) you wish to challenge
Step 4: Indicate the answer you believe is correct
Step 5: Write a brief explanation supporting your position
Step 6: Upload supporting references from up to three authentic sources (NCERT textbooks, government publications, peer-reviewed academic texts, recognized reference books, etc.)
Step 7: Submit before the deadline
Deadline for Objection Submission
Last Date: May 31, 2026, 6:00 PM No representations will be accepted after this deadline under any circumstances.
What Happens After You Submit?
All objections submitted through QPRep will be placed before a panel of subject matter experts. These experts will:
- Review each contested question independently
- Examine the candidate’s explanation and supporting documents
- Analyse the correctness of the original answer versus the proposed alternative
- Record a considered expert opinion
Only after this expert scrutiny will the Final Answer Key be prepared and used for evaluation of Prelims results. This process is designed to ensure academic accuracy and procedural fairness.
Also Read, UPSC Provisional Answer Key from CSE 2026 – A Step towards greater transparency
Conclusion
For aspirants, the UPSC Prelims provisional answer key offers an early opportunity to assess performance, estimate probable scores, and make informed decisions regarding the next stage of preparation.
Other Related linked for UPSC CSE Prelims 2026
FAQs on UPSC Prelims 2026 Provisional Answer Key
When will UPSC release the Prelims 2026 Provisional Answer Key?
UPSC has announced that the provisional answer key will be released soon after the conduct of the Civil Services (Preliminary) Examination 2026.
Where will the UPSC Provisional Answer Key be available?
The answer key will be available on the official UPSC website and UPSC Online portal.
Can candidates challenge the UPSC Provisional Answer Key?
Yes. Candidates will be able to submit representations through the Online Question Paper Representation Portal (QPRep).
What is the last date to submit objections against the UPSC Prelims 2026 Answer Key?
As per the official communication, representations can be submitted till 31 May 2026, 6:00 PM.
Is CSAT qualifying in UPSC Prelims 2026?
Yes. CSAT (Paper II) is qualifying in nature, and candidates need a minimum of 33% marks to qualify.
