Complete Guide to CDS general knowledge syllabus and weightage 2026

The CDS General Knowledge paper comprises 100 multiple-choice questions carrying a total of 100 marks, with subjects like General Science, History, Polity, Geography, and Current Affairs forming the core weightage. Candidates must secure sectional cut-offs, making a targeted preparation strategy essential to clear the UPSC cutoff.

Welcome to the definitive guide by ExamBhai on the CDS general knowledge syllabus and weightage. Cracking the Combined Defence Services (CDS) examination conducted by the Union Public Service Commission (UPSC) requires a rigorous, data-driven approach. As expert mentors who have guided thousands of aspirants into the Indian Military Academy, Naval Academy, Air Force Academy, and Officers' Training Academy, we understand that General Knowledge is often the ultimate game-changer. Unlike English or Elementary Mathematics, the vast expanse of the GK syllabus can intimidate even the brightest minds. In this guide, we break down the exact weightage, subject-wise syllabus, examination framework, and winning strategies to help you conquer this paper for CDS 2027.

What is the Exam?

The Combined Defence Services Examination (CDS) is a national-level competitive test administered twice a year by the Union Public Service Commission (UPSC). Its core objective is to select eligible, dynamic, and intellectually sharp graduates for commissioning into the premier branches of the Indian Armed Forces. Selected candidates undergo rigorous pre-commissioning training at esteemed institutions such as the Indian Military Academy (IMA) in Dehradun, the Indian Naval Academy (INA) in Ezhimala, the Air Force Academy (AFA) in Dundigal, and the Officers' Training Academy (OTA) in Chennai.

The examination pathway is rigorous, testing candidates across three core pillars: English Language, General Knowledge, and Elementary Mathematics (the latter is exempted for candidates applying solely to the OTA). Because the Armed Forces demand leaders who are not only physically robust but also intellectually curious and globally aware, the General Knowledge paper is meticulously designed to assess a candidate's understanding of current national and international events, historical context, socio-political frameworks, and foundational scientific principles. Success in this exam opens doors to a prestigious, highly respected career marked by leadership, adventure, and unwavering service to the nation.

Key Highlights 2026

Staying updated with the structural parameters of the examination is vital for an organized study plan. Here are the key highlights for the CDS examination framework:

• Conducting Body: Union Public Service Commission (UPSC)
• Exam Frequency: Twice a year (CDS I and CDS II)
• Mode of Examination: Offline (Pen and Paper based, OMR sheet)
• Selection Stages: Written Examination followed by Services Selection Board (SSB) Interview and Medical Examination
• Papers for IMA, INA, AFA: English (100 Marks), General Knowledge (100 Marks), Elementary Mathematics (100 Marks) — Total 300 Marks
• Papers for OTA: English (100 Marks), General Knowledge (100 Marks) — Total 200 Marks
• Duration per Paper: 2 Hours (120 minutes)
• Marking Scheme: Standard +1 mark for a correct response and a negative penalty of (0.33) marks for every incorrect answer
• Language Medium: Bilingual (Question papers are set in both English and Hindi, except for the English language section)

Syllabus 2026

The Union Public Service Commission prescribes a broad curriculum for the General Knowledge paper. It is designed to test the candidate's general awareness of the environment around them and its application to society. Questions are not expected to require specialized study of any discipline. Below is the comprehensive breakdown of the syllabus coupled with historical weightage trends.

Subject-Specific Syllabus Insights

• Current Affairs: Focuses heavily on the preceding 12 months. Special emphasis is given to defense acquisitions, joint military exercises, national security policies, prestigious awards, and global geopolitical shifts.
• General Science: Biology holds a slight edge here, covering human physiology, diseases, and plant biology. Physics and Chemistry focus on everyday scientific principles, laws of motion, chemical bonding, and elements.
• Indian Polity: Emphasizes constitutional articles, amendments, landmark Supreme Court judgments, and the functioning of Panchayati Raj and urban local bodies.
• Geography: Map-based questions are a staple of UPSC. Expect questions on mountain ranges, straits, national parks, river basins, and climatic zones of India and the world.
• History: Modern Indian History and the Indian National Movement (from 1857 to 1947) command the highest share, followed by ancient and medieval administrative systems and cultural heritage.

Exam Pattern

The structural framework of the CDS written examination demands disciplined time management and strategic question selection. Because there is negative marking, guesswork can severely penalize your aggregate score.

To master this exam pattern and enhance your speed, we strongly recommend that you practice free mock tests for CDS 2027 on ExamBhai to analyze your accuracy under timed constraints.

Eligibility Criteria

Official eligibility guidelines, as outlined by the governing body on the official UPSC portal, are structured around nationality, age, educational qualifications, and physical standards.

• Nationality: A candidate must be either an Indian citizen, a subject of Bhutan, a subject of Nepal, or a Tibetan refugee who came over to India before January 1, 1962, with the intention of permanently settling in India.
• Educational Qualification:
  • For IMA and OTA: Degree of a recognized university or equivalent.
  • For Indian Naval Academy: Degree in Engineering from a recognized university/institution.
  • For Air Force Academy: Degree of a recognized university with Physics and Mathematics at 10+2 level or Bachelor of Engineering.
• Age Limit:
  • IMA: Unmarried male candidates born between specific mutually exclusive dates set by UPSC (typically aged 19 to 24 years).
  • INA: Unmarried male candidates aged 19 to 24 years.
  • AFA: Unmarried candidates aged 20 to 24 years.
  • OTA: Unmarried male and unmarried/divorced/widow female candidates aged 19 to 25 years.
• Marital Status: Except for OTA where non-married, windowed, or divorced women/men qualify under specific clauses, most academies strictly require candidates to be unmarried.

Application Process

Applying for the CDS examination is a streamlined digital procedure hosted via the official recruitment portals.

1. One-Time Registration (OTR): Visit the official UPSC website and complete your OTR by filling out your basic personal, educational, and contact details. This profile remains valid for all future UPSC exams.
2. Form Submission: Log into your OTR profile, navigate to the active examinations tab, and select the Combined Defence Services Examination.
3. Preference Selection: Carefully select your academy preferences (IMA, INA, AFA, OTA). Note that once submitted, these preferences cannot be altered.
4. Fee Payment: Pay the requisite application fee of INR 200 (SC/ST candidates and female applicants of all categories are exempt from fee payment) via net banking, debit/credit card, or SBI cash challan.
5. Center Selection & Final Lock: Choose your preferred examination center from the available list across India, verify all entered details, and submit the application. Download and save the confirmation page for future records.

Preparation Strategy

Cracking the CDS General Knowledge paper requires smart work combined with multi-source reading habits. Because the syllabus is vast, trying to read everything can lead to burnout. Follow this strategic blueprint formulated by our mentors:

• Master NCERT Foundations: Build your core science and social science base using standard NCERT textbooks from Class 6 through 10. These form the bedrock of UPSC's conceptual questions.
• Dedicate Time to Current Affairs: Compile monthly current affairs compilations and regularly read a national daily like The Hindu or The Indian Express, paying special attention to editorials, defense updates, and international summits.
• Prioritize High-Yield Areas: Modern Indian History and Indian Polity consistently offer high return-on-investment. Ensure you have absolute clarity on constitutional articles and national movement timelines.
• Simulate Exam Conditions: Timing is everything when dealing with 100 questions in 120 minutes. You should access expert-curated mock exam papers for CDS 2027 on ExamBhai to build your stamina and decision-making speed.
• Review Previous Years' Questions (PYQs): Analyze at least the last 5 to 7 years of UPSC CDS question papers. UPSC frequently repeats core thematic areas and conceptual frameworks.
• Regular Revision Cycles: Dedicate weekends exclusively to revising static notes. Memory retention for facts in History, Geography, and Science depends entirely on repetitive loops.

To further boost your sectional accuracy and test-taking confidence, explore our comprehensive question bank for CDS 2027 on ExamBhai for targeted topic-wise practice.

Cut-Off Trends

Understanding historical cut-off trends helps establish a realistic target score during mock tests. Based on data verified from historical statistics published on the official UPSC portal, the minimum qualifying marks (out of 100 per paper, with a minimum individual sectional requirement of (20%) per subject) fluctuate based on paper difficulty and vacancy counts.

• IMA Cut-Off Trends: Historically ranges between (120) to (140) marks out of 300 total.
• INA Cut-Off Trends: Ranges between (110) to (130) marks out of 300 total.
• AFA Cut-Off Trends: Consistently remains on the higher side, ranging between (135) to (155) marks out of 300 total due to limited vacancies.
• OTA (Men & Women) Cut-Off Trends: Ranges between (95) to (115) marks out of 200 total.

Note on Sectional Cut-Off: UPSC mandates a strict minimum of (20%) marks in each individual paper (General Science, English, Mathematics) to qualify. Therefore, scoring high in General Knowledge is non-negotiable for clearing the aggregate threshold.

Frequently Asked Questions

What is the total weightage of the General Knowledge paper in CDS?

The General Knowledge paper carries a total weightage of 100 marks, consisting of 100 objective-type multiple-choice questions. Each correct answer awards 1 mark, while incorrect answers attract a penalty of (0.33) marks.

Is there any sectional cut-off for the CDS General Knowledge paper?

Yes, UPSC mandates that candidates must secure a minimum qualifying standard of (20%) marks individually in each of the written papers (English, General Knowledge, and Elementary Mathematics) to be considered for recommendation.

Which subjects carry the maximum weightage in the CDS GK syllabus?

General Science and Current Affairs traditionally command the highest individual share, together accounting for nearly 45 to 50 questions. Indian Polity, History, and Geography also contribute significantly with 15 to 20 questions each.

Can female candidates apply for all academies through the CDS exam?

Female candidates are eligible to apply for the Officers' Training Academy (OTA) for both Short Service Commission (SSC) Course (Non-Technical) and SSC Course (Technical). Eligibility for IMA, INA, and AFA is restricted to unmarried male candidates as per current government rules.

Are calculators or electronic devices permitted inside the CDS examination hall?

No, electronic devices, programmable calculators, log tables, cellular phones, smartwatches, or any communication equipment are strictly prohibited inside the examination center.

How many times is the CDS exam conducted every year?

The UPSC conducts the CDS examination twice a year—designated as CDS I and CDS II—usually notifying applications in the months of December/January and May/June respectively.