CDS preparation guide
Combined Defence Services (CDS) is a Defence exam in India. ELA Exam Mentor helps you prepare for it with a diagnostic test that finds your weak topics, a personalised daily study plan, daily quizzes, and an AI tutor that explains answers step by step. Free to start on Android and the web.
Get it on Google PlayUse the web app
Direct download: most phones use the main APK; older 32-bit phones (armeabi-v7a) use the 32-bit phone APK.
- Full name
- Combined Defence Services
- Category
- Defence
CDS syllabus outline
A source-verified topic outline for CDS is not published on this page yet. Check the official notification for the current syllabus; the app's diagnostic test will still help you find your starting level.
How ELA Exam Mentor helps you prepare for CDS
- Diagnostic placement testA short adaptive test that finds which topics you already know and which need work.
- Personalised daily planLessons, practice questions and revision are chosen from your own results, not a one-size-fits-all schedule.
- Daily quizzesShort daily and weekly quizzes keep recall sharp, with explanations for every answer.
- AI tutor that explains step by stepAsk Mentor walks through a concept or a wrong answer one step at a time, in 12 Indian languages.
- Current affairsA daily current-affairs feed for exams that test general awareness.
CDS FAQ
What is CDS?
CDS stands for Combined Defence Services. In ELA Exam Mentor's catalog it is listed under Defence.
What is the exam pattern of CDS?
A source-verified pattern for CDS is not published on this page yet. Check the official notification for the current stages, papers and marking scheme.
What does the CDS syllabus cover?
A verified topic-by-topic outline for CDS is not published on this page yet. Use the official syllabus as the reference and start with the app's diagnostic test to see where you stand.
How does ELA Exam Mentor help me prepare for CDS?
It starts with a short adaptive diagnostic test to find your weak topics, builds a personalised daily study plan, gives daily quizzes with explanations, and includes an AI tutor that explains concepts and wrong answers step by step in English, Hindi, Tamil, Telugu, Kannada, Malayalam, Bengali, Marathi, Gujarati, Punjabi, Odia and Assamese.
Where do I find CDS dates, eligibility and vacancies?
These change from year to year, so this page does not quote them. Use the official notification, and treat any third-party figure as unverified.
Start preparing
Get it on Google PlayUse the web app
Direct download: most phones use the main APK; older 32-bit phones (armeabi-v7a) use the 32-bit phone APK.