NDA and CDS Foundation

Build your next skill.

A foundation course for the written exams of the UPSC National Defence Academy and Combined Defence Services examinations. It builds the mathematics, English and general knowledge that these papers test, with short lessons, worked examples and quick checks. What you will cover: • Algebra: sets, quadratic equations, progressions, logarithms, matrices, permutations, combinations and the binomial theorem • Trigonometry and coordinate geometry: identities, heights and distances, lines, circles and vectors • Calculus and statistics: limits, differentiation, integration, mean, variance and probability • English: grammar, errors, voice, narration, vocabulary and comprehension • General knowledge: school level physics, chemistry and biology, history, geography, polity, economy and a current events method Pattern note: the UPSC notices for NDA and NA 2026 list a Mathematics paper of 300 marks and a General Ability Test of 600 marks (English 200 and General Knowledge 400), each of two and a half hours, with a written total of 900 marks. The CDS 2026 notices list English, General Knowledge and Elementary Mathematics of 100 marks and two hours each for the IMA, INA and AFA, and English and General Knowledge for the OTA. Wrong answers lose one third of the marks of the question. Patterns can change, so read the notice of the exam and year in which you apply. This course states no dates, vacancies or cut-offs. Each of the 5 chapters has a practice test that draws 10 fresh questions per attempt from a tagged bank of 20, with unlimited retakes.

Take away something useful.

• Solve algebra, trigonometry, calculus and probability questions at NDA level
• Use coordinate geometry and vectors
• Write correct English and spot errors
• Revise school level science and static general knowledge
• Know the NDA and CDS papers from the notices
• Keep a weekly current events habit

Everything you get.