What is UPSC CDS? The Reality Check
UPSC CDS (Combined Defence Services) is a national-level examination conducted twice a year by the Union Public Service Commission for recruitment to the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers' Training Academy (OTA).
Key Highlights for 2026
| Parameter |
Details |
| Conducting Body | Union Public Service Commission (UPSC) |
| Exam Frequency | Twice a year (CDS I & CDS II) |
| Total Vacancies (CDS I) | 451 |
| Application Period (CDS I) | 10 – 30 December 2025 |
| Exam Date (CDS I) | 12 April 2026 |
| Exam Date (CDS II) | 13 September 2026 |
| Mode of Exam | Offline (Pen & Paper) |
The truth: Nearly 5 lakh candidates compete for only about 450 seats. The difference between "aspirant" and "officer" is not intelligence – it's understanding that this exam tests your knowledge in the written round and your personality in the 5-day SSB.
UPSC CDS 2026 Important Dates
CDS I 2026
| Event |
Date |
| Notification Released | 10 December 2025 |
| Online Application Start | 10 December 2025 |
| Last Date to Apply | 30 December 2025 (6:00 PM) |
| Admit Card Release | Early April 2026 |
| Exam Date | 12 April 2026 |
| Result Declaration | To be announced |
CDS II 2026
| Event |
Date |
| Notification Date | 20 May 2026 |
| Last Date to Apply | 9 June 2026 |
| Exam Date | 13 September 2026 |
Application Fee
| Category |
Fee |
| General / OBC / EWS | ₹200 |
| SC / ST / Female | Exempted |
| Mode of Payment | Online |
Eligibility Criteria 2026
Before you even think about the exam, check if you're eligible. The rules are strict, and any discrepancy leads to rejection at any stage.
Nationality
You must be:
- A citizen of India, OR
- A subject of Nepal/Bhutan, OR
- A Tibetan refugee who came to India before 1 January 1962, OR
- A person of Indian origin migrated from specified countries (Pakistan, Burma, Sri Lanka, East African countries) with intention to permanently settle in India
Age Limit, Gender & Marital Status – Academy Wise
This is the most critical part. Each academy has different requirements.
| Academy |
Age Limit |
Born Between |
Gender |
Marital Status |
| IMA |
19 – 23 years |
2 Jan 2003 – 1 Jan 2007 |
Male only |
Unmarried |
| INA |
19 – 23 years |
2 Jan 2003 – 1 Jan 2007 |
Male only |
Unmarried |
| AFA |
20 – 24 years |
2 Jan 2002 – 1 Jan 2006 |
Male only |
Under 25: Unmarried; Over 25: Married allowed but no family accommodation during training |
| OTA Men |
19 – 25 years |
2 Jan 2001 – 1 Jan 2007 |
Male only |
Unmarried |
| OTA Women |
19 – 25 years |
2 Jan 2001 – 1 Jan 2007 |
Female only |
Unmarried/Issueless widows/Issueless divorcees |
Critical point: Male divorcee/widower candidates are not treated as unmarried and are not eligible for any course.
Educational Qualification – Academy Wise
| Academy |
Educational Qualification |
| IMA | Bachelor's degree from recognized university |
| INA | Engineering degree from recognized university |
| AFA | Degree from recognized university (with Physics & Mathematics at 10+2 level) OR Bachelor of Engineering |
| OTA | Bachelor's degree from recognized university |
Important notes:
- Final-year students can apply, but must produce proof of graduation before SSB Interview
- No backlog up to the last declared semester/year
- Candidates barred by Ministry of Defence from holding commission are ineligible
UPSC CDS Exam Pattern 2026: Complete Breakdown
The CDS written exam is conducted offline (pen and paper) with objective-type questions. The pattern differs based on the academy you're applying for.
For IMA, INA & AFA (3 Papers)
| Subject |
Duration |
Number of Questions |
Maximum Marks |
| English | 2 hours | 120 | 100 |
| General Knowledge | 2 hours | 120 | 100 |
| Elementary Mathematics | 2 hours | 100 | 100 |
| Total | 6 hours | 340 | 300 |
For Officers' Training Academy (OTA) – 2 Papers
| Subject |
Duration |
Number of Questions |
Maximum Marks |
| English | 2 hours | 120 | 100 |
| General Knowledge | 2 hours | 120 | 100 |
| Total | 4 hours | 240 | 200 |
Marking Scheme
| Parameter |
Rule |
| Correct Answer | +1 mark |
| Wrong Answer | -0.33 marks (1/3rd deduction) |
| Multiple Answers Marked | -0.33 marks |
| Unattempted Questions | No deduction |
What this means: Accuracy is as important as speed. In my first attempt, I attempted all 120 GK questions but got 40 wrong. That's -13 marks. I failed by 5 marks. Don't guess blindly.
Subject-Wise Syllabus 2026
English Syllabus
| Topic |
Difficulty |
Expected Questions |
| Reading Comprehension | Easy to Moderate | 20-25 |
| Cloze Test | Easy | 15-20 |
| Error Spotting | Easy | 15-20 |
| Sentence Improvement | Easy | 15-20 |
| Synonyms & Antonyms | Easy to Moderate | 10-15 |
| Para Jumbles | Easy to Moderate | 8-10 |
| One Word Substitution | Moderate | 5-8 |
| Idioms & Phrases | Moderate | 5-8 |
My strategy: Read The Hindu editorial daily. Underline difficult words, note their usage. Practice error spotting – 20 questions daily.
Elementary Mathematics Syllabus
Mathematics is Class 10 level, but don't take it lightly.
| Topic |
Expected Questions |
| Number System | 15-18 |
| Mensuration | 12-15 |
| Geometry | 15-20 |
| Trigonometry | 12-14 |
| Algebra | 8-10 |
| Time & Distance | 5-7 |
| Percentage | 2-3 |
| Profit & Loss | 2-3 |
| Simple & Compound Interest | 4-5 |
| Statistics (Mean, Median, Mode) | 3-4 |
| Time & Work | 3-4 |
Topics in detail:
- Arithmetic: Number systems, fundamental operations, square roots, decimal fractions, unitary method, percentages, profit/loss, simple/compound interest, ratio & proportion
- Algebra: Basic operations, factors, remainder theorem, HCF/LCM, polynomials, quadratic equations, simultaneous linear equations, indices
- Trigonometry: Sin x, cos x, tan x values for 0°,30°,45°,60°,90°, trigonometric identities, heights and distances
- Geometry: Lines and angles, properties of triangles, congruence, similarity, circles, tangents, loci
- Mensuration: Areas of squares, rectangles, triangles, circles; volume of cones, cylinders, spheres
- Statistics: Data collection, tabulation, bar charts, pie charts, histograms, frequency polygons, central tendency
General Knowledge Syllabus
| Topic |
Expected Questions |
Difficulty |
| Science (Physics, Chemistry, Biology) | 25-30 | Easy to Moderate |
| Geography | 20-22 | Moderate |
| History | 18-20 | Moderate |
| Polity | 18-20 | Easy |
| Defence & Military | 12-15 | Easy to Moderate |
| Current Affairs | 10-12 | Moderate |
| Economy | 8-10 | Difficult |
| Environment & Ecology | 5-7 | Easy to Moderate |
Key areas:
- History: Indian history, freedom struggle
- Geography: Indian and world geography, physical geography
- Polity: Constitution, Parliament, fundamental rights
- Economics: Basic economic concepts, budgets, schemes
- General Science: Everyday science, inventions, discoveries
- Current Affairs: National & international events, awards, summits, sports
- Defence: Army, Navy, Air Force – organization, exercises, weapons
The SSB Interview: The Real Game
This is where dreams are made or broken. The SSB is a 5-day, 300-marks ordeal that tests your personality, not your knowledge.
SSB Stages
| Stage |
Component |
Duration |
| Stage 1 | OIR Test (Officer Intelligence Rating), Picture Perception & Description Test (PP&DT) | Day 1 |
| Stage 2 | Psychology Tests (TAT, WAT, SRT, SDT), Group Testing Officer (GTO) Tasks, Personal Interview | Days 2-4 |
| Stage 3 | Conference | Day 5 |
SSB Marks Distribution
| Component |
Marks |
| Psychology Tests | 200 |
| GTO Tasks | 200 |
| Personal Interview | 200 |
| Conference | 100 |
| Total | 300 |
What they don't tell you: The written exam is just the entry ticket. The SSB is where you're judged on the 15 Officer Like Qualities (OLQs) – leadership, courage, initiative, intelligence, etc. You can't cram for this. You have to live it.
UPSC CDS Salary 2026: Complete Breakdown
Let's talk about what matters most – the money. After training, selected candidates join as Lieutenant with pay scale of ₹56,100 – ₹1,77,500 per month.
Rank-Wise Salary Structure
| Rank |
Pay Scale (₹) |
Pay Level |
| Lieutenant | 56,100 – 1,77,500 | Level 10 |
| Captain | 61,300 – 1,93,900 | Level 10B |
| Major | 69,400 – 2,07,200 | Level 11 |
| Lieutenant Colonel | 1,21,200 – 2,12,400 | Level 12A |
| Colonel | 1,30,600 – 2,15,900 | Level 13 |
| Brigadier | 1,39,600 – 2,17,600 | Level 13A |
| Major General | 1,44,200 – 2,18,200 | Level 14 |
| Lieutenant General | 1,82,200 – 2,24,100 | Level 15 |
| VCOAS/Army Cdr | 2,25,000 (fixed) | Level 17 |
| COAS | 2,50,000 (fixed) | Level 18 |
Monthly Salary Components (Lieutenant – Initial)
| Component |
Amount (₹) |
| Basic Pay | 56,100 |
| Military Service Pay (MSP) | 15,500 |
| Dearness Allowance (DA) (38% of Basic + MSP) | 27,208 |
| House Rent Allowance (HRA) (24% of Basic) | 13,464 |
| Transport Allowance | 7,200 + DA |
| Gross Salary | ~1,20,000 |
| Deductions (NPS, etc.) | ~15,000 |
| Net In-Hand Salary | ~1,05,000 |
Training Period Salary
| Component |
Amount |
| Stipend during Training | ₹56,100 per month (fixed) |
| Allowances during Training | Not applicable |
Allowances in Detail
| Allowance |
Amount |
Notes |
| Military Service Pay (MSP) | ₹15,500/month | For all officers from Lieutenant to Brigadier |
| Flying Allowance (Army Aviators) | ₹25,000/month fixed | For pilots in Army Aviation Corps |
| Field Area Allowance | ₹10,500 – ₹16,900/month | Based on rank and posting |
| High Altitude Allowance | ₹3,400 – ₹25,000/month | CAT I/II/III based on location |
| Siachen Allowance | ₹42,500/month | For those posted in Siachen |
| Uniform/Dress Allowance | ₹20,000/year | For maintenance of uniforms |
| Kit Maintenance Allowance | Included in Dress Allowance | For equipment upkeep |
| Free Rations | As per entitlement | Part of military perks |
| Children Education Allowance | ₹2,250/child/month | For two eldest children |
| Transport Allowance | ₹7,200 + DA (cities), ₹3,600 + DA (others) | For commuting |
| Technical Pay | As applicable | For technical qualifications |
| Special Forces Allowance | As applicable | For SF personnel |
| Risk & Hardship Allowance | As applicable | For challenging postings |
| Counter-Insurgency Allowance | As applicable | For CI operations |
| Island Special Duty Allowance | As applicable | For Lakshadweep/Andaman postings |
Non-Monetary Perks
| Perk |
Details |
| Accommodation | Government housing (married/unmarried) |
| Medical Facilities | Free treatment for self and family at military hospitals |
| CSD Canteen | Subsidized groceries and household items |
| Leave Travel Concession (LTC) | Free travel for self and family once a year |
| Education | Army schools with quality education |
| Pension | 50% of last pay after retirement |
| Ex-Servicemen Benefits | Post-retirement benefits and reservations |
| Social Status | Unmatched respect in society |
Career Growth and Promotion Path
| Rank |
Years of Service |
| Lieutenant | On completion of training |
| Captain | 2 years |
| Major | 6 years |
| Lieutenant Colonel | 13 years |
| Colonel (TS) | 26 years |
| Colonel | 15 years |
| Brigadier | 23 years |
| Major General | 25 years |
| Lieutenant General | 28 years |
| General | No fixed timeline |
Physical & Medical Standards
You can top the written and SSB and still get rejected at medicals. Know these before you start.
Height Standards
| Gender |
Minimum Height |
Relaxation |
| Male | 157.5 cm | 152 cm for Gorkhas, Assamese, Garhwalis, North-Eastern hills |
| Female | 152 cm | 148 cm for above categories |
Visual Standards
| Branch |
Vision Requirement |
| IMA/OTA (Army) | 6/6 in better eye, 6/9 in worse eye (correctable) |
| INA (Navy) | 6/6 in both eyes (uncorrected) for some branches |
| AFA (Air Force) | Strictest standards – check notification carefully |
Important:
- Refractive surgery (LASIK/PRK/SMILE) candidates are eligible for most branches except special forces
- Radial Keratotomy candidates are permanently disqualified
- Spectacle wearers are not eligible for Air Force
Preparation Strategy: Target Scores
Written Exam Targets (IMA/INA/AFA)
| Subject |
Target Score (out of 100) |
| English | 70+ |
| General Knowledge | 75+ |
| Elementary Mathematics | 80+ |
| Total | 225+ out of 300 |
Written Exam Targets (OTA)
| Subject |
Target Score (out of 100) |
| English | 80+ |
| General Knowledge | 85+ |
| Total | 165+ out of 200 |
Selection Process Overview
| Stage |
Marks |
Nature |
| Written Exam | 300/200 | Qualifying for SSB |
| SSB Interview | 300 | Final Merit |
| Medical Exam | - | Mandatory |
Final selection is based on: Written Exam + SSB marks, but only after clearing medicals.
Why UPSC CDS is Worth It
The salary breakdown I shared? That's not just numbers. That's:
- A 2 BHK in a military station with manicured lawns
- A batman who polishes your shoes
- A jeep with a red light
- Soldiers saluting you
- Medical coverage for your parents
- A pension after 20 years
- A life where you don't check prices at the CSD canteen
- The pride of leading men in uniform
But more than that – it's the chance to serve the nation. It's your father telling everyone with tears in his eyes, "Mera beta fauj mein hai." (My son is in the army.)
The CDS 1 2026 notification is out, applications closed on December 30, 2025, and the exam is on April 12, 2026. If you're reading this in early 2026, you have exactly 3 months. It's not enough time to start from scratch – but if you've been preparing, these 3 months can make all the difference.
I failed SSB four times. Four times I heard "conferenced out." The fifth time, my chest number was called. I broke a table.
Today, trains stop for me at level crossings. But more importantly, my father's friends stop him on the road to ask about me.