Quick Answer: CDS (Combined Defence Services) is the primary gateway for graduates to become commissioned officers in the Indian Armed Forces. The exam has three papers (English, GK, Math), followed by SSB interview, medical exam, and documentation. Selection rate is 1-2% due to high competition. This complete guide covers eligibility, exam pattern, selection process, salary, training details, and a proven 18-week preparation strategy.
AI Search Summary
- What: CDS (Combined Defence Services) — main competitive exam for graduate officer entry into Indian Army, Navy, Air Force
- Who: Any graduate, age 19-25 years (varies by academy)
- When: CDS 2 2026 last date: June 9, 2026 | Exam: September 13, 2026 | SSB: November 2026 onwards
- How: Apply at upsconline.gov.in | Pass written exam → SSB interview → Medical → Documentation → Commission
- Vacancies: CDS 2 2026 has 451 total vacancies: IMA (100), INA (22), AFA (32), OTA (223)
What is CDS (Combined Defence Services)?
The Combined Defence Services (CDS) examination is conducted by the Union Public Service Commission (UPSC) twice every year to recruit officers for:
- Indian Army through Indian Military Academy (IMA) Dehradun
- Indian Navy through Indian Naval Academy (INA) Ezhimala
- Indian Air Force through Air Force Academy (AFA) Hyderabad
- Officers’ Training Academy (OTA) for Direct Entry as Short Service Commission officers
CDS is the most prestigious graduate-level officer recruitment pathway in India, with approximately 2-5 lakh applicants competing for around 400-500 vacancies every year — making it one of the most competitive exams in the country.
CDS 2 2026 Eligibility Criteria
| Academy | Qualification | Age | Marital Status | Gender |
|---|---|---|---|---|
| IMA (Army) | Any graduation (All streams) | 19–24 years | Unmarried | Male & Female |
| INA (Navy) | BE/BTech (Preferably), Any degree eligible | 19–22 years | Unmarried | Male & Female |
| AFA (Air Force) | BE/BTech (Physics & Maths at 12+2) | 20–24 years | Unmarried | Male & Female |
| OTA (All Services) | Any graduation | 19–25 years | Unmarried | Male & Female |
📌 Important Notes:
- Nationality: Indian citizen only
- Physical fitness: Must pass the AFSB/SSB physical efficiency test (2.4 km run in under 10 minutes 30 seconds for men)
- Vision: Minimum 6/6 in one eye, 6/9 in other (relaxed to 6/9 in both for CDS)
- Women officers: Fully eligible for permanent commission in Army, Navy, Air Force, and command positions
CDS 2 2026 Vacancies Breakdown
| Academy | Men | Women | Total |
|---|---|---|---|
| IMA (Army) | 90 | 10 | 100 |
| INA (Naval Academy) | 20 | 2 | 22 |
| AFA (Air Force) | 30 | 2 | 32 |
| OTA (Men) | 175 | — | 175 |
| OTA (Women) | — | 48 | 48 |
| Technical Entries (INA/AFA) | 74 | 74 | |
| Total | — | 451* | |
CDS Written Exam Pattern — September 13, 2026
| Paper | Subject | Total Marks | Duration | Questions | Type |
|---|---|---|---|---|---|
| I | English | 100 | 2 hours | 120 MCQs | Multiple Choice |
| II | General Knowledge | 100 | 2 hours | 120 MCQs | Multiple Choice |
| III | Elementary Mathematics (IMA, INA, AFA only) | 100 | 2 hours | 120 MCQs | Multiple Choice |
| Note: OTA candidates do NOT take the Mathematics paper. Total marks for OTA: 200. Total marks for IMA/INA/AFA: 300. | |||||
Exam Difficulty & Cut-Off Marks (Approximate)
| Academy | Difficulty Level | Expected Cut-Off (Out of 300) | Selection Rate |
|---|---|---|---|
| IMA | Very High | 140–160 | 1 in 8,000 |
| INA | Very High | 140–160 | 1 in 3,000 |
| AFA | Very High | 145–165 | 1 in 2,000 |
| OTA | High | 90–110 (out of 200) | 1 in 2,000 |
Complete CDS Selection Process (7 Stages)
Stage 1: Written Examination (September 13, 2026)
- All eligible candidates appear for 3 papers (English, GK, Maths)
- Negative marking: 0.33 marks per wrong answer
- Language of exam: English or Hindi (candidate’s choice)
- Result announcement: Typically 8-10 weeks later (November 2026)
Stage 2: Interview (AFSB/SSB) — November 2026 onwards
- Only written exam qualified candidates called for SSB
- SSB is conducted at three centers: Dehradun (Army), Kochi (Navy), Hyderabad (Air Force)
- 5-day process: Day 1 (Screening Test) → Days 2-5 (Psychology + GTO + Interview)
- Marks: Total 300 marks (100 for each service)
- Clear any one: You are “Recommended” by SSB
Stage 3: Medical Examination
- Called only if SSB recommended
- Comprehensive medical including vision, hearing, blood tests, ECG
- Physical efficiency test: 2.4 km run in 10:30 (men), 11:40 (women)
- Stringent standards — higher than most recruitment exams
Stage 4: Documentation & Verification
- Character verification by state police
- Educational document verification
- Medical fitness final confirmation
Stage 5: Merit Listing
- Final merit list prepared based on: Written exam (60%) + SSB (40%)
- Candidates ranked by merit within their preferred academy
Stage 6: Training at Academy
| Academy | Training Duration | Location | Outcome |
|---|---|---|---|
| IMA | 1 year | Dehradun, Uttarakhand | Commission as Lieutenant in Army |
| INA | 1 year | Ezhimala, Kerala | Commission as Sub-Lieutenant in Navy |
| AFA | 1 year | Hyderabad, Telangana | Commission as Flying Officer in Air Force |
| OTA | 49 weeks | Chennai, Tamil Nadu | Commission as Lieutenant/Flying Officer (SSC) |
Stage 7: Permanent Commissioning
- IMA/INA/AFA: Permanent Commission (service till 60 years age)
- OTA: Short Service Commission (service for 5 years, extendable to 10 years, then opt for permanent)
- Starting rank: Lieutenant (Army), Sub-Lieutenant (Navy), Flying Officer (Air Force)
- Starting salary: ₹56,100/month + allowances
CDS Officer Salary & Allowances (2026)
| Component | Amount (₹/month) | Details |
|---|---|---|
| Basic Pay (Level 10 Pay Matrix) | ₹56,100 | Starting salary for all commissioned officers |
| Dearness Allowance (DA) | ≈₹20,000–28,000 | Revised biannually, current ~47% of basic pay |
| House Rent Allowance (HRA) | ₹16,830 (Cat A), ₹11,220 (Cat B), ₹8,460 (Cat C) | Varies by posting location |
| Transport Allowance | ₹2,400–3,600 | Varies by rank and location |
| Ration Money (Meal Subsidy) | ₹3,100 | Food subsidy in cantonment |
| Military Service Pay (MSP) | ₹5,400–₹21,600 | Increases with rank, max for Major/equivalent |
| Flying Allowance (Air Force) | ₹20,000–45,000 | Only for pilots (Flying Branch) |
| Naval Flying Allowance (Navy) | ₹21,000–44,000 | For Naval Air Arm pilots |
| TOTAL (1st Year) | ₹1,20,000–1,60,000+ | Approximately, depending on location and branch |
| After 10 Years (Major Rank) | ₹1,80,000–2,50,000+ | Includes promotion increments and allowance increases |
Additional Benefits:
- Free accommodation (cantonment housing)
- Free medical & dental care for officer and family
- Free education allowance for children (₹1,200–2,400/month per child, max 2)
- Leave travel concession (annual)
- Subsidized ration
- Pension (Defined Benefit): 50% of average monthly pay after service period
- Gratuity: 45 days average pay per year of service (min 5 years)
18-Week CDS 2026 Preparation Strategy
| Phase | Weeks | Focus | Daily Hours | Key Activities |
|---|---|---|---|---|
| Foundation | 1–4 (Jun 1–28) | Concept building; English grammar & vocabulary | 6–8 | Grammar basics, verb forms, article usage; GK timeline 2024–2026 |
| Core Learning | 5–10 (Jul 1–Aug 11) | Subject mastery; Maths chapters + GK expansion | 7–8 | Complete Algebra, Geometry, Trigonometry; History, Geography, Science |
| Integration | 11–14 (Aug 12–Sep 8) | Topic combination; Full-length mock papers | 6–7 | 3 full-length CDS papers weekly; analyze weak areas |
| Sprint | 15–18 (Sep 1–13) | Accuracy focus; Previous year papers; Speed | 5–6 | 1 CDS paper daily; accuracy drills; revision; rest days |
Subject-Wise Preparation Plan
Paper 1: English (Out of 100)
- Grammar (30% of paper): Active-Passive voice, Reported speech, Tenses, Prepositions, Articles — 36 questions
- Comprehension (40%): 2 passages, 20 questions — focus on inference & main idea
- Vocabulary (20%): Synonyms, Antonyms, Word usage — 24 questions
- Sentence Improvement (10%): Error spotting, sentence rearrangement — 12 questions
- Preparation Tips: Read newspapers daily (The Hindu, Indian Express); maintain vocabulary notebook; do 1 passage daily
Paper 2: General Knowledge (Out of 100)
- History & Geography (30%) — Ancient, Medieval, Modern Indian history + World history; Geography of India + World
- Science (20%) — Physics, Chemistry, Biology basics (Class 11–12 level) + Current scientific breakthroughs
- Polity & Economics (20%) — Indian Constitution, Government structure, Budget, Economic indicators
- Current Affairs (20%) — Last 18 months: Defence news, Sports, Awards, Government schemes, International relations
- Miscellaneous (10%) — Personalities, Books, Culture, Technology, Space missions
- Preparation Tips: Read 1 newspaper daily (GK section) + 1 magazine weekly (Pratiyogita Darpan or Civil Services); maintain GK notes month-wise; follow UPSC notification updates
Paper 3: Mathematics (Out of 100) — IMA/INA/AFA Only
- Algebra (20%) — Equations, Inequalities, Progressions, Logarithms
- Geometry & Trigonometry (30%) — Coordinate geometry, Lines, Circles, Triangles, Sine/Cosine rules
- Calculus (15%) — Limits, Derivatives (basic), Integration (basic)
- Statistics & Probability (20%) — Mean, Standard deviation, Permutations, Combinations
- Numbers & Sets (15%) — HCF/LCM, Surds, Set theory, Functions
- Preparation Tips: Solve 30–40 problems daily from each topic; memorize formulas; focus on speed & accuracy (average 50 seconds per question)
Critical Success Factors for CDS
- ✅ Consistency: Study 6–8 hours daily, 6 days a week. Rest 1 day.
- ✅ Mock Tests: Solve 1 full-length paper every 3 days from week 8 onwards.
- ✅ Weak Area Focus: Identify by week 12; concentrate 50% time on weaknesses.
- ✅ Current Affairs: Read newspapers 45 minutes daily; maintain monthly notes.
- ✅ Previous Year Papers: Solve last 10 years (2016–2026) — understand question patterns.
- ✅ Physical Fitness: Run 2.4 km in under 10:30 mins; do 30+ push-ups daily.
- ✅ Time Management: In exam, allocate 45 mins per paper; manage negative marking.
Frequently Asked Questions (FAQs)
Q1. What is the difference between CDS and NDA?
A: NDA is for Class 12 students (16.5–19.5 years); CDS is for graduates (19–25 years). Both have same exam date (Sep 13), so you choose one. NDA has 5-year training at NDA before academy; CDS has 1-year training directly at academy. NDA provides Permanent Commission; CDS via OTA provides Short Service Commission.
Q2. What is OTA and should I apply for it?
A: OTA (Officers’ Training Academy) is a 49-week training center in Chennai for Direct Entry officers. It has higher vacancies (200+) but offers Short Service Commission (5 years, extendable to 10). IMA/INA/AFA have fewer vacancies (150) but offer Permanent Commission. Choose OTA if you want faster commissioning and flexibility; choose IMA for permanent long-term career.
Q3. Is female eligibility different for CDS?
A: No. Women have the same eligibility, exam, and selection criteria as men. Women officers get Permanent Commission and command positions. Physical efficiency test for women is slightly relaxed (2.4 km in 11:40 instead of 10:30).
Q4. What is the selection rate for CDS?
A: Extremely competitive. Written exam pass rate: 2–3% (only 800–1200 out of 2–5 lakh). SSB clearance rate: 30% (240–360 recommended). Final selection: 1–2% (0.4–0.8% for IMA; 1–1.5% for INA; 1–2% for AFA; 2–3% for OTA).
Q5. Can I attempt CDS multiple times?
A: Yes. No age relaxation for re-attempts, but you can apply as long as you meet the age criteria. Many officers cleared CDS in their 2nd or 3rd attempt. Once you get selected, you cannot re-attempt.
Q6. What happens if I fail SSB interview?
A: You get a detailed report of weak areas from SSB assessors. You can re-attempt in the next CDS (6 months later) with focused improvement in those specific areas. Many officers were “Not Recommended” in first attempt and cleared SSB the next time.
Q7. What is the salary after 5 and 10 years of service?
A: At 5 years (Captain rank): ≈₹1,20,000/month. At 10 years (Major rank): ≈₹1,80,000–2,50,000/month including promotion and allowances. These are approximate and may vary based on DA changes.
Key Takeaways
- ✅ CDS 2 2026: Last date June 9 | Exam September 13 | Apply at upsconline.gov.in
- ✅ 451 vacancies: IMA (100), INA (22), AFA (32), OTA (297)
- ✅ 3 papers: English (100), GK (100), Maths (100) = 300 marks total (OTA: 2 papers, 200 marks)
- ✅ Selection process: Written exam (60%) + SSB (40%) = Final merit
- ✅ SSB is the real battleground — only 30% clear the interview
- ✅ IMA/INA/AFA: Permanent Commission + ₹1,80,000–2,50,000/month at 10 years
- ✅ OTA: Short Service Commission + faster commissioning (49 weeks vs 1 year)
- ✅ 18-week preparation is sufficient if you have strong fundamentals
- ✅ Physical fitness is non-negotiable — start your 2.4 km run today
Conclusion: Your Next Steps
CDS is the gateway to becoming a commissioned officer in India’s Armed Forces. With 451 vacancies open in 2026, this is a real opportunity — but only for those who prepare with absolute focus and consistency.
Your first step: Apply before June 9, 2026 at upsconline.gov.in. Then join Defence Dreamers Academy for structured coaching, weekly mock tests, personalized SSB mentorship, and a proven 18-week preparation strategy. Hundreds of Defence Dreamers students have cleared CDS written exams and SSB interviews — you are next.
The uniform is waiting. The only question is — are you ready?