The Union Public Service Commission (UPSC) has released the UPSC Combined Geo-Scientist Answer Key 2026 on 04 November 2026. Candidates who appeared in the Combined Geo-Scientist (Preliminary) Examination 2026 can now download the official answer key PDFs for General Studies Paper I and various subject-specific Paper II examinations.
UPSC has published separate answer keys for Geophysics, Geology/Hydrogeology and Chemistry. Candidates can check the correct answers for their respective question-paper series (A, B, C and D) through the official PDFs provided below.
The UPSC Combined Geo-Scientist Preliminary Examination was conducted on 08 February 2026. Candidates can use the answer keys to review the officially accepted answers. Check the complete details, important dates and direct download links below.
UPSC Combined Geo-Scientist Answer Key 2026 – Overview
| Particulars | Details |
|---|---|
| Organization | Union Public Service Commission (UPSC) |
| Examination Name | Combined Geo-Scientist Examination 2026 |
| Examination Stage | Preliminary Examination |
| Advertisement Number | 01/2026-GEOL |
| Answer Key Release Date | 04 November 2026 |
| Preliminary Exam Date | 08 February 2026 |
| Paper I | General Studies |
| Paper II | Geophysics / Geology-Hydrogeology / Chemistry |
| Answer Key Status | Released |
| Question Paper Series | A, B, C and D |
| Answer Key Mode | Online PDF |
| Official Website | https://upsc.gov.in/ |
UPSC Combined Geo-Scientist Answer Key 2026 – Important Dates
Candidates can check the important dates related to the UPSC Combined Geo-Scientist Examination 2026 in the table below.
| Event | Date |
|---|---|
| Notification Release Date | 03 September 2025 |
| Online Application Last Date | 23 September 2025 |
| Preliminary Examination Date | 08 February 2026 |
| Preliminary Result Date | 02 March 2026 |
| Main Examination Date | 20–21 June 2026 |
| Main Written Result | 20 July 2026 |
| Interview Schedule | 02 September 2026 |
| Final Result Date | 16 October 2026 |
| Answer Key Release Date | 04 November 2026 |
UPSC Combined Geo-Scientist Answer Key 2026 Download PDF
UPSC has uploaded the official answer keys for all four Preliminary Examination papers. Candidates should select the appropriate subject and download the corresponding PDF.
The direct official download links are given below.
| Answer Key / Paper | Download Link |
|---|---|
| General Studies Paper I Answer Key 2026 | Download PDF |
| Geophysics Paper II Answer Key 2026 | Download PDF |
| Geology / Hydrogeology Paper II Answer Key 2026 | Download PDF |
| Chemistry Paper II Answer Key 2026 | Download PDF |
| Official UPSC Examination Page | Click Here |
Note: Candidates should download the answer key for their respective subject and carefully check their question-paper series before matching answers.
UPSC General Studies Paper I Answer Key 2026
UPSC has released the General Studies Paper I Answer Key 2026 for candidates who appeared in the Combined Geo-Scientist Preliminary Examination.
The official answer key contains separate answer tables for question-paper Series A, B, C and D. Candidates can download the PDF and compare their responses with the answers published by UPSC.
| Particulars | Details |
|---|---|
| Examination | Combined Geo-Scientist Preliminary 2026 |
| Paper | Paper I |
| Subject | General Studies |
| Total Questions | 120 |
| Maximum Marks | 100 |
| Questions Dropped | 0 |
| Questions Taken for Scoring | 120 |
| Available Series | A, B, C and D |
| PDF Pages | 4 |
| Download | Download General Studies Answer Key |
UPSC Geophysics Paper II Answer Key 2026
The UPSC Geophysics Paper II Answer Key 2026 is now available for candidates who appeared in the Geophysics subject examination.
Candidates can check the official answers for all four question-paper series. The answer key contains 120 questions, and all 120 questions have been taken into account for scoring.
| Particulars | Details |
|---|---|
| Examination | Combined Geo-Scientist Preliminary 2026 |
| Paper | Paper II |
| Subject | Geophysics |
| Total Questions | 120 |
| Maximum Marks | 300 |
| Questions Dropped | 0 |
| Questions Taken for Scoring | 120 |
| Available Series | A, B, C and D |
| PDF Pages | 4 |
| Download | Download Geophysics Answer Key |
UPSC Geology / Hydrogeology Paper II Answer Key 2026
UPSC has also published the Geology/Hydrogeology Paper II Answer Key 2026. Candidates who selected Geology or Hydrogeology as their subject can download the official PDF from the link below.
| Particulars | Details |
|---|---|
| Examination | Combined Geo-Scientist Preliminary 2026 |
| Paper | Paper II |
| Subject | Geology / Hydrogeology |
| Available Series | A, B, C and D |
| Answer Key Format | |
| Download | Download Geology / Hydrogeology Answer Key |
UPSC Chemistry Paper II Answer Key 2026
The Chemistry Paper II Answer Key 2026 is available separately on the official UPSC website. Candidates who appeared in the Chemistry subject paper should download this answer key and check their responses according to their question-paper series.
| Particulars | Details |
|---|---|
| Examination | Combined Geo-Scientist Preliminary 2026 |
| Paper | Paper II |
| Subject | Chemistry |
| Available Series | A, B, C and D |
| Answer Key Format | |
| Download | Download Chemistry Answer Key |
How to Download UPSC Combined Geo-Scientist Answer Key 2026?
Candidates can follow the steps given below to download the official UPSC Combined Geo-Scientist Answer Key 2026.
- Visit the official website of UPSC at https://upsc.gov.in/.
- Go to the Examination section.
- Click on the Answer Keys option.
- Find Combined Geo-Scientist (Preliminary) Examination 2026.
- Select the relevant answer key for General Studies, Geophysics, Geology/Hydrogeology or Chemistry.
- Click on the corresponding PDF download link.
- Open the answer key and select your question-paper series (A, B, C or D).
- Match your answers with the officially published answers.
- Download and save the PDF for future reference.
Candidates can also use the direct PDF download links provided in this article.
UPSC Combined Geo-Scientist Answer Key 2026 – How to Calculate Marks?
Candidates can compare their attempted answers with the official answer key to review their performance.
For calculating the estimated marks, candidates should:
- Download the answer key for their respective subject.
- Identify the correct question-paper series.
- Match each answer with the response marked in the examination.
- Count the correct and incorrect responses.
- Apply the marking and negative-marking rules mentioned in the official examination notification.
The General Studies Paper I carries 100 marks, while the subject-specific Paper II carries 300 marks. Candidates should refer to the official examination notification for the applicable marking scheme before calculating their estimated scores.
Important: An estimated score based on answer matching is not an official result or final marks statement issued by UPSC.
UPSC Combined Geo-Scientist Result 2026
UPSC declared the Combined Geo-Scientist Preliminary Examination Result 2026 on 02 March 2026. Candidates who qualified in the Preliminary Examination were eligible to appear in the Main Examination as per the prescribed selection process.
The Main Examination was conducted on 20 and 21 June 2026. UPSC subsequently declared the Main written result on 20 July 2026 and published the interview schedule on 02 September 2026.
The final result of the Combined Geo-Scientist Examination 2026 was declared on 16 October 2026.
Candidates can visit the official UPSC examination page to check the previously published results and other examination documents.
Is There Any Objection Facility for UPSC Combined Geo-Scientist Answer Key 2026?
The answer-key documents have been uploaded by UPSC on 04 November 2026. The publication of these PDFs does not, by itself, announce a fresh objection or representation window.
Candidates should check the official UPSC website for any separate notice regarding representations or answer-key challenges. They should not assume that a new objection facility is available simply because the answer keys have been published.
Important Instructions for Candidates
- Download the answer key only from the official UPSC website.
- Select the correct subject-specific Paper II answer key.
- Check your question-paper series carefully.
- Match the question numbers correctly.
- Follow the official marking scheme while calculating estimated marks.
- Keep a copy of the downloaded answer key for future reference.
- Check the official UPSC website for further updates.
UPSC Combined Geo-Scientist Answer Key 2026 – FAQs
Q1. Is UPSC Combined Geo-Scientist Answer Key 2026 released?
Yes, UPSC released the Combined Geo-Scientist Preliminary Examination Answer Key 2026 on 04 November 2026.
Q2. What is the UPSC Combined Geo-Scientist Answer Key 2026 release date?
The official answer keys were uploaded on 04 November 2026.
Q3. When was the UPSC Combined Geo-Scientist Preliminary Examination 2026 conducted?
The Preliminary Examination was conducted on 08 February 2026.
Q4. Where can I download the UPSC Geo-Scientist Answer Key 2026?
Candidates can download the answer key from the official UPSC website at https://upsc.gov.in/ or use the direct PDF links provided in this article.
Q5. Which papers are covered under the UPSC Combined Geo-Scientist Answer Key 2026?
The answer keys cover General Studies Paper I and subject-specific Paper II examinations, including Geophysics, Geology/Hydrogeology and Chemistry.
Q6. How many question-paper series are available in the UPSC CGS Answer Key 2026?
The answer keys provide separate answers for Series A, B, C and D.
Q7. Has UPSC declared the Combined Geo-Scientist Final Result 2026?
Yes, UPSC declared the Combined Geo-Scientist Final Result 2026 on 16 October 2026.
Q8. Can candidates raise objections against the UPSC Geo-Scientist Answer Key 2026?
The answer-key upload does not announce a fresh objection window. Candidates should refer to UPSC’s official website for any separate notice regarding representations.