Exam resources

CDS

Combined Defence Services (CDS) Examination is conducted by UPSC twice a year to select officers for the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA), and Officers Training Academy (OTA). Candidates undergo service-specific training and are commissioned as officers in the Indian Armed Forces.

Practice tests

Quizzes

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SampleCDS · Free sample (4 questions)A few questions in the exact player you get after buying: the clock, the question palette, then your score and every answer explained.
#1

Synonyms and Antonyms Usage Fundamentals — Free CDS Quiz

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10 Qs · ~10 min

Instant score, answer review and weak-topic diagnosis

#2

Indian Constitution Fundamental Rights Fundamentals | CDS

10 Qs · ~10 min

Instant score, answer review and weak-topic diagnosis

#3

Error Spotting in Sentences Advanced Challenge | CDS

10 Qs · ~10 min mayanagri leads with 10/10

Instant score, answer review and weak-topic diagnosis

Formula of the day
Maths · Coordinate Geometry · 9 formulae in the cheatsheet
Trap of the day
CDS Elementary Maths rewards speed on basics — percentages, ratio, mensuration, time-work. Don’t over-invest in one hard sum.

Guides

Explore resources

CDS Cutoff: Academy-wise Written and Final History, 2012–2025

27 official UPSC sittings, separate OTA men and women figures, written versus final marks, subject minima, a history explorer and practical mock-score analysis.

CDS Exam Syllabus: Subject-wise Pattern for IMA, INA, AFA and OTA

Official academy-wise papers, marks, negative marking and syllabus; a paper chooser, 2026-II vacancies, past-paper evidence and a practical revision method.

Alerts and Updates for CDS

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Guides
Preparing with colleagues?Send this page to your CDS group — the papers and guides are free to read.
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