Combined defense service exam is conducted twice every year.

Here are the useful links for preparation of GS, Maths and SSB Interview.

Studyplans/Free material

  1. General Awareness/GK Paper: studyplan, free material, previous cutoffs, physical standards
  2. Maths Paper: Number System, Quadratic Equations, Surds, Indices, Linear Equation (Part 1 of 3)
  3. Maths Paper: Percentages, profit-loss, Simple,Compound Interest rate,Time,Speed,Distance,Work and Statistics (part 2 of 3)
  4. Maths Paper: Geometry, Trigonometry, Mensuration, Area, Volume, Perimeter (Part 3 of 3)
  5. SSB Interviews: Dos and don’t, Tips, suggestions

Answerkeys with Explanations


  1. [Answerkey] CDS-2014: Geography, Environment-Biodiversity (EnB), Agriculture, Climate, Map related MCQs solved with explanation
  2. [Answerkey] CDS-2014: Science, Physics, Chemistry, Biology, Botany, Zoology, Heat, Motion, Optics, Electricity-MCQs solved with Explanation
  3. [Answerkey] CDS-2014: Polity, Constitution, Parliament related MCQs solved with explanation
  4. [Answerkey] CDS-2014: History Ancient, Medieval, Modern MCQs solved with explanation


  1. [Answerkey] CDS(II)2013: Polity, International Affairs, Misc.GK, PIN, Books, Sports: MCQs analysis & answers with explanations
  2. [Answerkey]CDS(II)2013:Geography, agriculture, Environment-Biodiversity MCQs- analysis & answers with explanations

When to apply?

The last date for applying in CDS(I)2014 is already gone. But  you can still wait for CDS(I) 2014.

  • Its notification will come on 19-7-2014,
  • Last date to apply will be 18-8-2014
  • and the exam will be held on 26-10-2014.

So, keep an eye on UPSC’s official website during that period.

Unacademy Plus

Mrunal recommends

  1. (free) NCERT, NIOS, TN-Books 4 History,Geo,Sci
  2. Indian Polity M.Laxmikanth (Hindi | English)
  3. Spectrum: Modern History (Hindi | English)
  4. Maths: Quantam CAT Sarvesh Kumar
  5. Objective General English SP Bakshi
  6. Word Power made Easy -Norman Lowe
  7. Topic wise Solved Paperset by Disha

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8 Comments on “Combined Defense Services Exam (CDS): Tips, Strategy, Studyplan, Free study material, Answerkeys and Cutoffs”

  1. Sir please guide me more basic information about how to apply,how many attempts can be made for general and for how much marks it’ll be asked and what is the time duration. And also provide some materials.
    Thanking you.

  2. sir please guide me how do preparation for ota….i hv applied for cds1-2014 exam….
    thanking you……

  3. what about english study plan

  4. can you please prepare a studyplan for AFCAT(AirForce Common Admission Test)

  5. Mrunal Please upload CDS-I 2014 solution paper wise … Eagrly waiting for solution…………

  6. English-77
    General Knowledge-40
    any chance to select in ssb 2014

  7. please, tell me about cds enterview…

  8. Sir can u please guide me how to prepared English paper and General knowledge paper? Thinking you Sir!

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