The CDS 1 2025 exam was conducted on April 13, 2025. The CDS 1 2025 Answer key PDF for Maths, English, and General Knowledge is shared in the article for the candidates. Candidates can download the CDS 1 2025 exam unofficial answer key for all sets that is released by Major Kalshi Classes.
The Combined Defence Services (CDS) Examination is conducted to recruit Commissioned Officers for the Indian Army, Navy, Air Force, and OTA. The CDS 1 2025 exam was conducted on April 13, 2025. The CDS exam is conducted twice a year by the Union Public Service. Candidates are chosen based on a written exam, followed by an SSB interview for IQ and personality. Following the end of an exam, many institutes offer an unofficial CDS answer key to assess performance. Major Kalshi is one of them. It also publishes the answer key for the CDS Written Exam 2025 following the exam. Scroll down to learn more about CDS 2025, as well as direct access to the answer key.
The authority (UPSC) will release the CDS answer key for the written examination on the official website.
The CDS 2 2025 answer key will be released by the Union Public Service Commission (UPSC) on its official website a few days or a couple of weeks after the exam is over. Several coaching institutes may also release the unofficial CDS answer keys shortly after the conduction of an exam.
- CDS 1 & 2 Exam
- CDS 1 Exam 2025: Highlights
- How to Download CDS 1 Answer Key 2025 by Major Kalshi?
- CDS 1 Question Paper PDF Download 2025
- Previous Years CDS Question papers and Answer Keys
- How to calculate scores using CDS Answer Key 2025?
- What is CDS Salary?
CDS 1 & 2 Exam
The UPSC conducts the CDS exams twice a year, namely CDS 1 and CDS 2. The CDS 1 exam, is held for courses beginning in January at the Indian Military Academy in Dehradun, the Air Force Academy in Hyderabad, and the Indian Naval Academy in Ezhimala, as well as courses beginning in April at the Officers Training Academy in Chennai. CDS 2 is, on the other hand, conducted for courses beginning in July at the Indian Military Academy in Dehradun, the Air Force Academy in Hyderabad, the Indian Naval Academy in Ezhimala, and the Officers Training Academy in Chennai.
Also Read: CDS Maths Question Paper 2025
CDS 1 Exam 2025: Highlights
Below is mentioned in detail about the CDS 1 Exam including exam level, frequency, stages, mode, etc.
| Parameters |
Details |
|---|---|
| Name of exam |
Combined Defence Services Examination |
| Conducted by |
|
| Exam Level |
National |
| Exam frequency |
Twice a year (April and September) |
| Exam mode |
Offline |
| Exam stages |
Written exam and SSB Interview |
| Exam timing |
The time allotted to each paper such as English, General Knowledge, and Elementary Mathematics is two hours |
| Language of question paper |
English and Hindi |
| No of questions |
Elementary Maths: 100 General English: 120 General Knowledge: 120 |
| Total marks |
Written Exam IMA, INA and AFA: 300 OTA: 200 SSB Interview IMA, INA and AFA: 300 OTA: 200 |
| Marking scheme |
One mark for the correct answer 0.33 marks deducted for wrong answers |
How to Download CDS 1 Answer Key 2025 by Major Kalshi?
Below, the steps are mentioned to download CDS answer key 2025 by Major Khalsi:
- Visit our Shiksha website where direct links to download the CDS 1 answer key PDF have been provided.
- Select your Question Paper Set-A/B/C/D
- CDS 1 answer key 2025 will be displayed as per your question paper on the screen.
- Download the CDS 1 answer key and save it for future reference and comparison.
Also Read: CDS Cut Off 2025
CDS 1 Answer Key by Major Kalshi Classes 2025
Candidates can check below answer key by Major Kalshi classes.
| CDS 1 2025 Paper | CDS 1 2025 Answer key PDF |
|---|---|
| CDS 1 English Answer Key (All Set) | |
| CDS 1 General Knowledge Answer key (Set B) | |
| CDS 1 Maths Answer Key (Set D) | Download Here |
CDS 1 Question Paper PDF Download 2025
The candidates will be able to download the CDS 1 question paper on April 13, 2025, in the table below:
| CDS Question Paper | CDS Question Paper PDF |
|---|---|
| CDS 1 English Question Paper | |
| CDS 1 General Knowledge Question Paper | Download Here (Set B) |
| CDS 1 Maths Question Paper | Download Here (Set D) |
Previous Years CDS Question papers and Answer Keys
candidates can check below the previous years CDS exam question papers and answer key.
No. The CDS 2 2025 answer key will not be the same for all the subjects. The exam has separate subjects including English, General Knowledge, and Mathematics. and are divided into sections.
| CDS Question Paper | CDS Question Paper PDF 2024 |
|---|---|
| CDS 1 English Question Paper | |
| CDS 1 General Knowledge Question Paper | |
| CDS 1 Maths Question Paper | Click Here |
CDS 2 Answer Key by Major Kalshi Classes 2024
The unofficial answer key by the Major Khalsi Classes will be provided after the exam is concluded. The CDS answer key PDF will be provided in the table below:
| Paper |
All Sets Answers |
|---|---|
| CDS 2 English Answer Key (All Set) |
|
| CDS 2 GK Answer Key (Set A) |
Available Soon |
| CDS 2 Maths Answer Key |
Available Soon |
| Paper |
All Sets Answers |
|---|---|
| CDS 1 English Answer Key (All Set) |
Click Here |
| CDS 1 GK Answer Key (Set A) |
Click Here |
| CDS 1 Maths Answer Key |
Available Soon |
CDS 2 Question Paper PDF Download 2023
The candidates can download the CDS 2 question papers in the table given below:
| CDS Question Paper | CDS Question Paper PDF |
|---|---|
| CDS 2 English Question Paper | Click Here |
| CDS 2 General Knowledge Question Paper | Click Here |
CDS 1 Question Papers 2023
The candidates can check the CDS 1 Question papers for English, Maths General Knowledge in the table below:
| CDS Question Paper | CDS Question Paper PDF |
|---|---|
| CDS 2 English Question Paper | Download Here |
| CDS 2 General Knowledge Question Paper | Download Here |
| CDS 1 Maths Question Paper | Download Here |
CDS 2 Answer Key 2023 (Unofficial)- Download Link
Major Khalsi released the unofficial answer key for CDS 2 for Maths, English, and GK all set so that students can calculate their approximate scores. The official answer key will be released by the commission after the time for raising objections is over. For the ease of candidates, we will provide the direct link to download the pdf answer.
| Paper |
All Sets Answers |
|---|---|
| CDS 2 English Answer Key |
Click Here |
| CDS 2 GK Answer Key |
Click Here |
CDS 1 Answer Key 2023 (Unofficial)- Download Link
Major Khalsi released the unofficial answer key for CDS 1 for Maths, English, and GK all set so that students can calculate their approximate scores. The official answer key will be released by the commission after the time for raising objections is over. For the ease of candidates, we will provide the direct link to download the pdf answer.
| Paper |
All Sets Answers |
|---|---|
| CDS 1 English Answer Key |
Download Here |
| CDS 1 GK Answer Key |
Download Here |
| CDS 1 Maths Answer Key |
How to calculate scores using CDS Answer Key 2025?
Candidates need to follow the marking scheme to calculate the scores prescribed by the examination authority.
- There is a penalty for wrong answers, and for the correct answer, the candidate will allot the marks assigned to the particular question.
- There is a negative marking for an incorrect answer. 1/3 marks are deducted as per the CDS exam pattern.
- If a candidate gives more than one answer, it will be treated as a wrong answer and a penalty of 1/3 marks will be deducted.
- If a candidate does not attempt a question, then there will be no penalty for that question.
- The scores of a candidate will be calculated by the UPSC, which is based on the number of correct answers after applying the penalty for wrong answers.
Also Read:
What is CDS Salary?
The candidates can check the stipend and the salary of the CDS posts according to their levels in the table below:
| Rank |
Level |
Salary (In INR) |
|---|---|---|
| Lieutenant |
Level 10 |
56,100 -1,77,500 |
| Captain |
Level 10 B |
61,300- 1,93,900 |
| Major |
Level 11 |
69,400 – 2,07,200 |
| Lieutenant Colonel |
Level 12A |
1,21,200 – 2,12,400 |
| Colonel |
Level 13 |
1,30,600-2, 15,900 |
| Brigadier |
Level 13A |
1,39,600-2,17,600 |
| Major General |
Level 14 |
1,44,200-2,18,200 |
| Lieutenant General HAG Scale |
Level 15 |
1, 82, 200-2,24,100 |
| HAG Scale |
Level 16 |
2,05,400 – 2,24,400 |
| VCOAS/Army Cdr/ Lieutenant General (NFSG) |
Level 17 |
2,25,000 (fixed) |
| COAS |
Level 18 |
2,50,000 (fixed) |
Read More:

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Student Forum
Answered a month ago
Some of the books, help candidates in their CDS preparation are given below:
- High School English Grammar & Composition Edition by Wren and Martin
- Objective General English by SP Bakshi
- Word Power Made Easy by Norman Lewis
- English Grammar & Composition by S.C Gupta
J
Contributor-Level 6
Answered a month ago
The authority released a total of 453 vacancies for the CDS 2 exam 2025 for admission to the Indian Air Force, Indian Military Academy, Indian Naval Academy, and Officers’ Training Academy for courses.
M
Contributor-Level 6
Answered a month ago
It is advised to the candidates to reach the CDS exam centre one hour before the given time. They should carry hall ticket along with them otherwise they will not be able to give the exam.
C
Contributor-Level 6
Answered a month ago
Yes, the English section of the CDS exam is scorable if it is prepared properly. Usually the difficulty level of the exam is moderate.
S
Contributor-Level 6
Answered a month ago
Candidates can check the cut off marks for the CDS exam by visiting the official website at upsc.gov.in. The UPSC will release the cutoff according to the academy or course.
S
Contributor-Level 10
Answered a month ago
The methods to check the CDS cut off marks is provided below:
- Visit at upsc.gov.in.
- Click on the :Examination" tab.
- Go to the "Cut Off Marks" dropdown menu.
- Click on the download link and save it for future reference.
I
Contributor-Level 6
Answered 2 months ago
Yes. In the CDS exam there is a negative marking. One-third mark will be deducted for an incorrect answer. No mark will be deducted for unanswered questions.
S
Contributor-Level 6
Answered 2 months ago
The CDS exam is conducted offline or pen and paper mode. Objective questions will be asked in the examination. Candidates need to mark their choices of answers in the sheet that was provided during the exam. CDS 1 2026 notification will be released on December 10.
J
Contributor-Level 6
Registration - 10 Dec '25 - 30 Dec '25

Candidates can download the answer key of CDS as given below.