Skip to main content

कुछ सरकारों को बदलने दो, कुछ हम मिलकर बदलेंगे!

COMBINED DEFENCE SERVICES EXAMINATION

CDS

A structured CDS preparation page for IMA, INA, AFA and OTA pathways, with written-paper subjects and SSB-oriented preparation.

PREPARATION HUB

Everything in one place

Use the resources below to move from syllabus coverage to revision, practice and exam readiness.

01

Written Examination

English, General Knowledge and Elementary Mathematics as applicable to the academy.

Explore Written Prep →
03

General Knowledge

Current affairs, history, geography, polity, science and defence awareness.

Explore GK →
04

Elementary Mathematics

Arithmetic, algebra, geometry, trigonometry and mensuration at the prescribed level.

Explore Maths →
05

Previous Year Questions

Practise official-style papers and identify repeated concepts.

View PYQs →
06

SSB Preparation

Build communication, reasoning, group-task and officer-like qualities.

Explore SSB →

EXAM STRUCTURE

At a Glance

Stage / PaperDetailsNotes
IMA / INA / AFAEnglish + General Knowledge + Elementary MathematicsWritten examination
OTAEnglish + General KnowledgeWritten examination
After WrittenSSB interview/testing and medical standardsSelection stage

SYLLABUS

CDS Syllabus

Organised subject-wise so you can use it as a checklist while preparing.

English

  • Understanding of English and effective use of words
  • Grammar, vocabulary, sentence usage and comprehension

General Knowledge

  • Current events
  • History of India
  • Geography
  • General science
  • Indian polity and economy
  • Defence and everyday awareness

Elementary Mathematics

  • Arithmetic
  • Algebra
  • Trigonometry
  • Geometry
  • Mensuration
  • Statistics and related elementary concepts

SSB / Selection Preparation

The written examination is followed by the Services Selection Board process for candidates who qualify. Prepare communication, psychological testing, group tasks, leadership and officer-like qualities.

Syllabus is presented as a preparation-friendly summary. Always cross-check the latest official notification for the recruitment cycle you are applying for.