One of the most common questions among defence aspirants is: How many marks are needed to clear the CDS written exam? The answer depends on the academy you are targeting, the difficulty level of the examination and the overall performance of candidates. The Union Public Service Commission (UPSC) releases separate written cut-offs for the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA) and Officers' Training Academy (OTA).

For candidates preparing for CDS 1 2027, understanding previous year cut-off marks can help establish a realistic preparation target. However, scoring exactly around the previous cut-off is risky because the marks required to qualify can change in every examination cycle.

A better approach is to aim for a score comfortably above the recent cut-off range. This guide explains the CDS safe score for 2027, previous year written cut-offs, academy-wise score targets, and an effective strategy to improve your chances of qualifying for the SSB interview.

How Many Marks Are Needed to Clear the CDS Written Exam?

No fixed score guarantees qualification in the CDS written examination. Candidates must meet the minimum qualifying requirement in each subject and secure the overall academy-wise cut-off released by UPSC.

The maximum written examination marks differ according to the academy:

• IMA, INA and AFA: 300 marks, comprising English, General Knowledge and Elementary Mathematics.
• OTA: 200 marks, comprising English and General Knowledge.

Based on recent cut-off trends, candidates can use the following approximate scores as preparation benchmarks for CDS 1 2027.

Important: These are suggested preparation targets based on recent cut-off patterns, not official or predicted CDS 1 2027 cut-off marks. The actual cut-off may vary depending on the examination and competition.

CDS Previous Year Written Cut-Off Marks: 2024 and 2025

Previous year cut-off marks provide a useful reference for understanding the score required to qualify for the SSB interview. The following tables show the marks of the last candidates who qualified in the written examination.

CDS 1 2025 Written Cut-Off

CDS 2 2025 Written Cut-Off

CDS 1 and CDS 2 2024 Written Cut-off

These figures show that the written cut-off changes between examination cycles. For example, the IMA cut-off increased from 120 in CDS 1 2025 to 124.11 in CDS 2 2025. AFA also recorded a higher cut-off in CDS 2 2025 than in CDS 1 2025.

Candidates should therefore prepare for a score above the recent cut-off range instead of relying on one examination's marks.

Academy-Wise CDS Safe Score Strategy for 2027

The preparation target should depend on the academy you want to join. IMA, INA and AFA have three written papers, while OTA has two. Therefore, candidates should not compare their raw scores without considering the maximum marks.

1. Safe Score for IMA

The IMA written cut-off was 120 in CDS 1 2025 and 124.11 in CDS 2 2025. Based on this trend, candidates targeting IMA should aim for 140 marks or above out of 300.

A balanced score across English, General Knowledge and Elementary Mathematics can help candidates reach this target. Avoid depending on only one strong subject because the minimum qualifying requirement applies separately to each paper.

2. Safe Score for INA

The INA written cut-off was 104 in CDS 1 2025 and 109.23 in CDS 2 2025. Candidates preparing for INA can set a target of 125 marks or above out of 300.

Focus on improving accuracy in all three subjects. Regular practice of mathematics and revision of General Knowledge can help improve the overall score.

3. Safe Score for AFA

Among IMA, INA and AFA, AFA recorded the highest written cut-off in both CDS 1 and CDS 2 2025. The cut-off was 128 in CDS 1 and 132.51 in CDS 2.

Candidates targeting AFA should aim for 145 marks or above out of 300 as a preparation benchmark. A strong performance across English, General Knowledge and Elementary Mathematics is important.

4. Safe Score for OTA Men

The OTA Men written cut-off was 81 in CDS 1 2025 and 80.01 in CDS 2 2025. Candidates should aim for 105 marks or above out of 200 to maintain a reasonable margin over these recent cut-offs.

Since OTA does not include Elementary Mathematics, candidates should concentrate on English and General Knowledge. Consistent practice and accuracy in both papers are important.

5. Safe Score for OTA Women

The OTA Women written cut-off was 81 in CDS 1 2025 and 98.06 in CDS 2 2025. This difference highlights why candidates should not assume that the cut-off will remain the same in every examination.

A preparation target of 110 marks or above out of 200 can provide a useful benchmark for candidates targeting OTA Women. The actual cut-off will depend on the examination and selection conditions.

Minimum Qualifying Marks in Each CDS Subject

Apart from the overall written cut-off, candidates must satisfy the minimum qualifying marks prescribed for individual subjects.

Recent CDS cut-off notifications have specified a minimum qualifying standard of 20% marks in each subject. However, the CDS 1 2024 cut-off notice specified 18% in each subject. This variation makes it important to check the official cut-off notice for the relevant examination.

Based on the 20% standard, the subject-wise qualifying marks are:

For IMA, INA and AFA, candidates must meet the subject-wise requirement in all three papers. For OTA, the requirement applies to English and General Knowledge.

Remember: Scoring 20 marks in each subject does not mean you have cleared the CDS written examination. You must also secure the overall cut-off for your preferred academy.

How to Calculate Your CDS Written Exam Score?

Understanding the CDS marking scheme helps candidates calculate their expected marks and decide whether their preparation is on track.

The written examination follows a negative marking system. One-third of the marks assigned to a question is deducted for every incorrect answer. Unanswered questions do not carry any penalty.

The paper-wise marking structure is:

Example of CDS Score Calculation

Suppose a candidate targeting IMA attempts the following number of questions:

The estimated total score is 156.11 out of 300. This score is above the recent IMA written cut-off range, although actual qualification depends on the official cut-off and applicable qualifying requirements.

Safe Score Strategy: How to Score Above the CDS Cut-off in 2027?

Candidates should not prepare only to cross the previous year's cut-off. The objective should be to develop accuracy, complete the syllabus, and maintain a consistent score in mock tests.

1. Set a Target According to Your Academy

First, identify whether you are targeting IMA, INA, AFA, or OTA. Set a preparation target based on the relevant maximum marks and recent cut-off trends.

For example, an IMA candidate can work towards 140+ marks, while an OTA candidate can aim for 105+ marks. These are preparation benchmarks, not guaranteed qualifying scores.

2. Analyse Previous Year Question Papers

Solve previous year CDS question papers to understand the types of questions, difficulty level and frequently tested topics. Analyse your mistakes after every paper instead of simply checking the final score.

3. Improve Accuracy to Reduce Negative Marking

Attempting more questions does not always mean scoring higher marks. Since incorrect answers attract negative marking, focus on accuracy and avoid blind guessing.

Practise eliminating incorrect options and identify the topics where you frequently make mistakes.

4. Prepare All Subjects Together

Candidates targeting IMA, INA and AFA must prepare English, General Knowledge and Elementary Mathematics. OTA candidates should focus on English and General Knowledge.

Do not ignore a subject because you are strong in another. Falling below the minimum qualifying requirement in one paper can affect your eligibility for the next stage.

5. Take Regular Mock Tests

Attempt full-length mock tests under actual examination conditions. Maintain a record of your scores in every subject and compare your performance over time.

If your scores are consistently below the target, revise the topics where you lose marks and practise similar questions.

6. Revise and Practise Consistently

Make a revision schedule for grammar rules, vocabulary, current affairs, static General Knowledge, mathematical formulas and important concepts. Regular revision helps improve recall and reduces avoidable mistakes during the examination.

What Happens After Clearing the CDS Written Exam?

Candidates who secure the required written cut-off are shortlisted for the SSB interview. The selection process then includes further assessment stages, including medical examination and preparation of the final merit list.

The written examination and SSB interview carry different maximum marks:

Clearing the written cut-off does not guarantee final selection. Candidates must qualify in the SSB interview and meet the applicable medical and eligibility requirements.

Prepare for CDS 1 2027 with Major Kalshi Classes

A good score in the CDS written examination comes from consistent preparation, regular practice and an understanding of the examination pattern. Major Kalshi Classes provides CDS coaching for aspirants preparing for IMA, INA, AFA and OTA.

Candidates can explore available online and offline preparation programmes, study materials, mock tests and guidance for the written examination and SSB selection process.

If you are preparing for CDS 1 2027, begin by identifying your target academy, setting a realistic score goal and following a structured study plan. Focus on improving your accuracy and aim to score comfortably above the previous year cut-off.