UPSC CSE Prelims Answer Key 2026 is now available on the official UPSC portal. Candidates who took the examination on 24th May 2026 can access their provisional answer key and recorded response sheets immediately. The Union Public Service Commission released the key to allow aspirants to evaluate their performance and file objections if they identify any errors in the official solutions.
This recruitment process aims to fill a total of 933 vacancies across various civil service positions. Aspirants have until 31st May 2026 at 6:00 PM to submit their objection requests against any questions they believe contain incorrect answers. The official UPSC website at https://upsc.gov.in serves as the sole authentic source for all updates, downloadable materials, and submission portals.
Note: All information is sourced from the official notification. Candidates are advised to verify all details from the official website before proceeding.
UPSC CSE Prelims Answer Key 2026 – Overview
| Particulars | Details |
|---|---|
| Conducting Organization | Union Public Service Commission (UPSC) |
| Examination Name | Civil Service Examination (CSE) – Preliminary Stage |
| Examination Date | 24th May 2026 |
| Total Vacancies | 933 |
| Answer Key Status | Released |
| Official Website | https://upsc.gov.in |
Important Dates
| Event | Date |
|---|---|
| Preliminary Examination Held | 24th May 2026 |
| Provisional Answer Key Released | 27th May 2026 |
| Objection Submission Deadline | 31st May 2026 (6:00 PM) |
| Final Answer Key Release | Early June 2026 |
| Result Announcement (Expected) | July 2026 |
How to Download the UPSC CSE Prelims Answer Key 2026
- Navigate to the UPSC official portal at https://upsc.gov.in.
- Locate the “Answer Key” or “Notification” section on the homepage.
- Select the link corresponding to “CSE Prelims Answer Key 2026”.
- Enter your registration credentials, including your roll number and password or date of birth.
- The provisional answer key, along with your recorded response sheet, will display on your screen.
- Click the download button to save the PDF file to your device for offline reference.
Expert Advice for Candidates
Before raising any objection, carefully compare your responses against the provisional answer key and cross-check your understanding with standard reference materials and the official UPSC syllabus. Many candidates overlook the marking scheme. Note that incorrect answers in GS Paper I attract a penalty of 0.66 marks,s while CSAT questions deduct 0.83 marks per wrong response. If you are genuinely confident that an official answer contains an error, submit your objection with supporting documentation (such as relevant textbook excerpts or government notifications) through the QPRep Portal before the deadline. Remember that frivolous objections may not be entertained by the commission, so ensure your challenge is well-reasoned and backed by credible sources.
How to Raise Objections Against the Provisional Answer Key
If you believe any answer in the provisional key is incorrect, you can file an objection through the official portal. Log in to your UPSC candidate account on https://upsc.gov.in and navigate to the “Challenge/Objection” section, commonly referred to as the QPRep Portal. Select the specific question(s) you wish to contest and attach relevant supporting materials such as reference books, court judgments, or government circulars that validate your challenge. Payment of the objection fee (if applicable) must be completed during the submission process. The final deadline for submitting objections is 31st May 2026 at 6:00 PM. Objections received after this time will not be accepted under any circumstances.
Score Calculation Using UPSC CSE Prelims Answer Key 2026
You can estimate your preliminary examination score using this calculation method:
Total Score = (Correct Answers × Marks per Question) − (Wrong Answers × Penalty per Question)
Marking Scheme Details:
- General Studies Paper I: +2 marks for correct response, −0.66 marks for incorrect response
- CSAT (General Studies Paper II): +2.5 marks for correct response, −0.83 marks for incorrect response
- Unattempted questions: Zero marks awarded
Expected Cut-Off Marks by Category
| Category | Expected Cut-Off Range |
|---|---|
| General (Unreserved) | 90 to 100 |
| Other Backward Classes (OBC) | 85 to 95 |
| Scheduled Castes (SC) | 75 to 85 |
| Scheduled Tribes (ST) | 75 to 85 |
| Economically Weaker Sections (EWS) | 85 to 95 |
| Persons with Disability (PwD) | 60 to 75 |
Note: These are anticipated cut-off ranges derived from previous examination cycles. The actual qualifying cut-off will be officially published along with the final results.
Important Links
| Resource | Link |
|---|---|
| Download UPSC CSE Prelims Answer Key (GS Paper I) | Download Here |
| Download UPSC CSE Prelims Answer Key (CSAT Paper II) | Download Here |
| Official Notification and Details | View Notification |
| Official Website | Official Website |
Frequently Asked Questions (FAQs)
Q1. When was the UPSC CSE Prelims Answer Key 2026 released?
Ans. The provisional answer key was officially released on 27th May 2026, three days after the examination was conducted.
Q2. How can I download the UPSC CSE Prelims Answer Key 2026?
Ans. Visit https://upsc.gov.in, navigate to the answer key section, log in with your registration credentials, and download the PDF directly to your device.
Q3. What is the deadline to file objections against the answer key?
Ans. Candidates must submit their objections by 31st May 2026, before 6:00 PM, through the official UPSC portal. Submissions after this deadline will not be accepted.
Q4. How is the final answer key different from the provisional answer key?
Ans. The provisional answer key is released immediately after the examination, while the final answer key is published after reviewing all objections and feedback from candidates and experts.
Q5. What is the negative marking scheme for the UPSC CSE Prelims 2026?
Ans. For GS Paper I, each wrong answer incurs a penalty of 0.66 marks, while each incorrect CSAT response results in a deduction of 0.83 marks. Unattempted questions carry no penalty.
Q6. Can I calculate my expected score using the provisional answer key?
Ans. Yes, you can estimate your score by multiplying correct answers by the marks awarded and subtracting the product of wrong answers and the penalty marks from the total.
Q7. What should I do if I find an error in the official answer key?
Ans. Log in to the UPSC candidate portal, access the objection section, select the disputed question, attach supporting documents, and submit your challenge before the deadline with the required fee if applicable.
