CDS Answer Key 2020 -Applicants can check unofficial CDS 2020 answer key for GK, English and Math subjects below this page in online mode on February 3.The answer key of CDS 2020 is released for all sets- set A, B, C and D. Along with CDS answer key 2020 pdf, detailed explanation is also provided. Candidates can check unofficial CDS 1 answer key 2020 by clicking on the link available below in this article. Applicants can use CDS 2020 answer key to calculate their probable score in the exam. However, Union Public Service Commission (UPSC) will release the official answer key of CDS 2020 tentatively in December after the declaration of final result. UPSC will short list candidates in next phase of CDS exam on the basis of marks of written exam. Read complete article to check how to download CDS 1 answer key 2020 with detailed explanation.
Latest: CDS Result 2020 Has Been Declared By UPSC On March 23.
Candidates can check expected CDS Cut off 2020
CDS 2020 exam is conducted for the recruitment of candidates as Commissioned Officers in Indian Navy, Army, and Air Force. By checking CDS 2020 answer key candidates can calculate their marks and predict their chances of qualifying the exam. A total of 7953 candidates have qualified in CDS (1) 2019 exam.

CDS Answer Key 2020

CDS 1 2020 Answer Key PDF

Applicants should note that after the exam will be completed candidates can check unofficial CDS answer key 2020 released by coaching institute from the below mentioned table.

Coaching Institute

CDS Answer Key 2020 English

CDS Answer Key 2020 English G K

CDS Answer Key 2020 Mathematics

Major khalshiDownload HereDownload HereDownload Here
SSB CrackDownload HereDownload HereDownload Here
Grade UpDownload Here (Set A)To be notifiedTo be notified
Careers360Download HereDownload HereTo be notified

CDS 2020 Answer Key GK

Candidates can check CDS answer key 2020 for GK section here

1. A solution having Ph equal to zero is
Ans: Highly Acidic
2. Which acid is produced in human stomach
Ans: Hydrochloric acid
3. The unit of force constant K of a spring is
Ans: N/m
4. BRICS summit 2020 will be hosted by
Ans: Russia
5. Sardar vallabhbhai patel's contribution for
Ans: Unity and Integrity of India
6. World tourism day 2019 host country
Ans: Delhi, India
7. National water academy is located
Ans: Khadakwasla
8. River which does not drain in black sea
Ans: Volga
9. Panchayati raj system is not applicable to which state
Ans: Meghalaya
10. Formulation of policy in respect to IPR is responsibility is
Ans: Department for Promotion of Industry and Internal Trade
11. Who founded Seva Samiti at Allahabad in 1914 ?
Ans: Hridayanath Kunzru
12. State of Hyderabad in Deccan official acceded to Indian Union in which year ?
Ans: 1948
13. Hunter Commission (1882) appointed to survey the state of education in India ?
Ans: Endorsed the dispatch with greater emphasis on primary education
14. Maiden trilateral naval exercise among India, Singapore, and Thailand
Ans: Port blair
15. 11th schedule of constitution of India distributes the power between
Ans: The gram sabha and Panchayat raj
16. Power to legislate on all matters relating to elections to Panchayat lies with
Ans: State Election Commission
17. first delimitation commission was set up in India on
Ans: 1952
18. The power of supreme court to decide in the case of a dispute between two or more states is called
Ans: Original Jurisdiction
19. Hilsa is the national fish of
Ans: Bangladesh
20. Rustom -2 which was crashed :
Ans: Unmanned Aerial Vehicle
21. Who among the following is chairman of EAC-PM
Ans: Bibek Debroy
22. College of military engineering affiliated to jawaharlal Nehru University is situated at
Ans: Pune
23. which among following is not principal language of jammu and kashmir
Ans: Monpa
24. Tattvabodhini sabha was established by
Ans: Debendranath Tagore in 1839
25. Gandhi Solar Park is located at
Ans: New York
26. A bilateral tri-service amphibious military exercise involving the armed forces of India and the United States
Ans: Tiger Triumph
27. The Global Goalkeeper award is given by
Ans: Bill & Melinda Gates Foundation
28. Naropa is an annual festival of
Ans: Ladakh
29. Siyar ul mutakherin written by
Ans: Ghulam Husain Khan
30. Which is added as Fundamental Duty through 86th CAA.
Ans: To provide opportunities for education for one's child between age 6 to 14.
31. first recipient of dadasaheb phalke award
Ans: Devika rani
32. Which one of the following is known as energy currency for cellular process
Ans: ATP
33. First enzyme to mixed with food in digestive tract.
Ans: Amylase
34. Gandhi's Dandi march associated with
Ans: Sodium Chloride
35. Which article protects a person against double jeopardy ?
Ans: Article 20
36. Who won best men's award for FIFA 2019
Ans: Lionel Messi
37. Which travel giants declared itself bankrupt
Ans: Thomas Cook
38. Greta thunberg, a teen girl environment activist hails from
Ans: Sweden
39. Biggest cause of incidence of migration of women in India
Ans: Marriage
40. Saubhagya, a GOI scheme relates to which of following area
Ans: Provide clean cooking fuel to poor households
41. Property of sound waves that determines the pitch of sound is its ?
Ans: Frequency
42. Which of following is not a property of X-ray ?
Ans: They are deflected by electric fields
43. Which is not true regarding an image formed by a plane mirror ?
Ans: It is real image
44. In a periscope, the two plane mirrors are kept
Ans: An angle of 45 degree to each other
45. Which radiations has shortest wavelength ?
Ans: Ultraviolet (UV)
46. Which animal has a three chambered heart ?
Ans: Salamander
47. Number of water molecules associated with copper sulfate molecule to form crystal is ?
Ans: 5
48. Silver article becomes black due to :
Ans: Silver reacts with sulfur in air to form a coating of silver sulphide
49. Correct relation between temperature and kelvin is:
Ans: x= 273+y
50. Resistivity of a material may be expressed in unit as
Ans: ohm-cm
51. Electromagnetic waves, which are used for satellite communications
Ans: Radio waves
52. Which of the following endocrine glands is not found in pair in humans ?
Ans: Pituitary
53. Which cell organelles contains DNA ?
Ans: Mitochondrion
54. Which one of the following Congress sessions was proclamation of Purna Swaraj ?
Ans: Lahore
55. Which acts reserved seats for women in Legislatures in accordance with allocation of seats of different communities ?
Ans: Government of India Act , 1935

CDS 2020 Answer Key English

Candidates can check CDS 1 answer key 2020 for English section here
Fill in the blanks

1. On his way to the capital, the minister ___ the eminent social worker at his residence. (called on)

2. The fire brigade fought for four hours to ___ the fire in the building (put out)

3. Ravi has proved that he can ___ on his promise by winning the match (carry through)

4. It is best ___ politics when in the classroom (keep out)

5. It shows that she has ____ many years of service (put in)

6. The chairperson said that the group was ___ of time. (running out)

7. If I ___ an angel, I would solve the problems of people. (were)

8. Where there is ____, there is a way (will)

9. The police could not establish how the accident ___ (came about)

10. I ____ my old friend after twenty years (ran into)

Idioms and Phrases

1. A paper tiger - Person or organization that appears powerful, but actually is not

2. Lily-livered - Not brave

3. Eat like a bird - Eat very little

4. The dog days - The hottest days

5. A banana republic - A small or poor country with a weak government

6. The pros and cons - The good and bad part parts of a situation

7. Prime the pump - To do something in order to make something succeed

8. The green-eyed monster - Feeling of being jealous

9. Rise to the occasion - To succeed in dealing with a difficult situation

10. Call it a day - Stop doing something

Spelling Mistakes (Find correct spelling)

1. Continuum

2. Strategy

3. Commissioner

4. Vacuum

5. Psephology

6. Nephrology

7. Pseudonym

8. Pneumonia

9. Resilient

10. Supplementary


1. Decay - Survival

2. Eloquently - Confusingly

3. Inertia - Activity

4. Philanthropy - Nastiness

5. Compassion - Indifference

6. Tempestuous - Relaxed

7. Wooing - Discouraging

8. Bestowed - Withdrawn

9. Elated - Depressed

10. Charitable - Malevolent


1. Implications- consequences
2. Contagious - Transmittable
3. Incorporated - Integrate

4. Generic - Broad
5. Stellar - Extraordinary
6. Cliched - Hackneyed
7. Vocation - Occupation
8. Fatigued - Exhaust
9. Aghast - Sad
10. Ascertained - Determine

Steps to Download CDS 2020 Answer Key

The answer key of CDS 1 and CDS 2 will be published in PDF format. To download CDS answer key 2020, follow the steps mentioned below.

Step 1: Click on the subject-wise CDS answer key links provided on this page

Step 2: PDF file for the answer key of the selected subject will open

Step 3: Cross-check your answers against the correct answers provided

Step 4: Download and save the CDS 2020 answer key for future use

Step 5: Calculate your score

UPSC CDS Answer Key 2020 - Important Dates



CDS 1 written exam

February 2, 2020

Unofficial CDS 2020 answer key

February 2, 2020

CDS result 2020March 23, 2020 (Released)

CDS answer key 2020 (official)

November, 2020

CDS 2020 final result

November, 2020

Marking Scheme of CDS 2020

  • Candidates will be awarded 1 mark for each correct answer.

  • 1/3rd marks will be deducted for every incorrect answer.

Keeping in mind the negative marking, candidates are advised to attempt only those questions that they are confident about. By knowing marking scheme of exam candidates can take maximum benefit CDS set wise answer key 2020.

Calculate Number of Correct and Wrong Attempts

Use the formula: Total Marks = Number of Correct Answers – (Number of Wrong Answers × 0.33)

Calculation of scores using CDS 2020 answer key?

As per the marking scheme of CDS exam, there is negative marking scheme in exam. CDS 1 answer key 2020 includes correct answers for all the questions asked in exam. Candidates have to first check their attempted correct and incorrect answers as per CDS 2020 answer key. After that add 1 marks for each correct answers and deduct 1/3 marks.

How to challenge CDS 2020 question papers

Step 1: Visit official website of UPSC-

Step 2: Click on question papers through Online Question Paper Representation Portal (QPRep).

Step 3: Entering basic details and submit challenges.

Applicants should note that for each exam, the commission has fixed a time-frame of 7 days for representation of CDS question papers.

Previous Years’ UPSC CDS Answer Keys Along with Question Paper

Subject-Wise Answer Keys of CDS II 2019

Candidates can check the subject wise answer key for CDS II 2019 here.

CDS Answer Key 2019 by careers360



General Knowledge

CDS II Answer KeyDownload Here Download Here

Previous Years’ UPSC CDS Answer Keys Along with Question Paper

Candidates can download and check the answer key along with CDS question papers for the previous year of exam so that they can prepare in a better way. Links to download the answer keys of CDS is mentioned in below given table. CDS answer key download is given in below mentioned table.

CDS Answer Key and Question Papers



General Knowledge

Elementary Mathematics

CDS II 2019 Question Paper

Download HereDownload HereDownload Here

CDS II 2019 Answer Key

To be NotifiedTo be NotifiedTo be Notified

CDS I 2019 Question Paper

Download HereDownload HereDownload Here

CDS I 2019 Answer Key

To be NotifiedTo be NotifiedTo be Notified

CDS II 2018 Question Paper

Download Here

Download Here

Download Here

CDS II 2018 Answer Key

Download Here

Download Here

Download Here

CDS I 2018 Question Paper

Download Here

Download Here

Download Here

CDS I 2018 Answer Key

Download Here

Download Here

Download Here

CDS II 2017 Question Paper

Download Here

Download Here

Download Here

CDS II 2017 Answer Key

Download Here

Download Here

Download Here

CDS I 2017 Question Paper

Download Here

Download Here

Download Here

CDS I 2017 Answer Key

Download Here

Download Here

Download Here

Detailed CDS II Answer Key

CDS GK Answer Key 2019
1. Which of the following is not a dimension of the Human Development Index
Ans: Access to banking and other financial provisions
2. Rajya sabha has exclusive jurisdiction in
Ans: Authorising Parliament to legislate on a subject in the State List
3. South Asian association for regional cooperation was founded
Ans: Dhaka
4. Which of the following countries is not a founding member of New Development Bank
Ans: Canada
5. Triples is a new format of
Ans: Badminton
6. In India May 21 is observed as
Ans: National anti terrorism day
7. President of Indonesia for the second term
Ans: Joko Widodo
8. India's GS Lakshmi has become
Ans: First female referee to be appointed on the ICC International Panel match referee
9. What is SWAYAM
Ans: Study Webs of Active learning for Young Aspiring Minds
10. Author of the book plagues and peoples
Ans: William H. McNeill
11. Organism responsible for sleeping sickness
Ans: Trypanosoma
12. Which one of the following is an example of a price floor
Ans: Minimum Support Price (MSP) for Jowar in India
13. Which is not considered in determining in MSP in India
Ans: Cost of living index
14. State does not have legislative council
Ans: Arunachal Pradesh
15. Mountain that separates black sea and caspian sea
Ans: Caucasus
16. Largest fresh water lake in India
Ans: Wular
17. Who were Alvars
Ans: Those who immersed in devotion to Vishnu
18. Which of the following acid known as vitamin C
Ans: Ascorbic Acid
19. Cotton clothes are
Ans: Good radiators of heat
20. Where are jhumri telaiya and mandar hill situated
Ans: Bihar
21. Which one of the following is motto of NCC

Ans: Unity and Discipline

22. Which department does not come under ministry of home affairs

Ans: Department of Legal Affairs

23. Article 371 A of indian constitution provides special privileges

Ans: Nagaland

24. Which law prescribes that all proceedings in the supreme court shall be in English language

Ans: Article 348 of Indian Constitution

25. Total number of members in the Union Council of Ministers in India shall not exceed

Ans: 15% of the total number of members of the Lok Sabha.

26. Chandimangala was composed in which one of the following languages during the 16th century CE

Ans: Bengali

27. In December 1962, which soviet leader declared that China was responsible for first Sino-Indian war of 1962

Ans: Khrushchev

28. The term soil impoverishment related to which one of the following

Ans: Soil getting very deficient in plant nutrients

29. Indexation is a method whose use can be associated with

Ans: Controlling inflation

30. A car undergoes a uniform circular motion the acceleration of car is

Ans: A non zero constant

31. Chlorophyll in photosynthetic prokaryotic bacteria is associated with

Ans: Membranous vesicles

32. Food Chain is

Ans: Passage of food (and thus energy) from one organism to another

33. Bose – Einstein Condensate is

Ans: Fifth state of matter

34. The rate of evaporation of liquid does not depend upon

Ans: its mass

35. What do you mean by ‘Demographic Dividend’

Ans: A rise in the rate of economic growth due to a higher share of working-age people in a population

36. Rutherford’s alpha-particle scattering experiment on thin gold foil was responsible for the discovery of

Ans: Atomic Nucleus

37. Which greek philosopher coined the term ‘Geography’ in 3rd century B.C.E.

Ans: Eratosthenes

38. Coral reefs are not found in

Ans: Gulf of Cambay

39. The concept of four pillar state free from district magistrate for India was suggested by

Ans: Ram Manohar Lohia

40. What is intercropping

Ans: It is growing of different crops on a piece of land in a pre-planned succession

41. Which one of the following is correct sequential phase in the successional development of vegetation community in a habitat

Ans: Nudation, Migration , Reaction and Stabilization

42. Rains caused by thunderstorms during the hot weather season (Mid March to Mid June) in Karnataka are called

Ans: Cherry blossoms

43. Which one of the following is monoatomic

Ans: Helium

44. In graphite each carbon atom is bonded to three other carbon atoms

Ans: In the same plane giving a hexagonal array

45. Employing Chromatography, one can not separate

Ans: Colours from a dye

46. Which one of the following is not found in animal cells ?

Ans: Cell wall

47. Which one of the following body parts/organs of the human body does not have smooth muscles

Ans:Bronchi of lungs

48. Magnification is

Ans: Observed size of specimen /actual size

49. The value of a normal demand curve is

Ans: Negative

50. Ginni coefficient or Gini Ratio can be associated with which one of the following measurements in the economy

Ans:Income inequality

CDS English Answer Key 2019
Correct Spelling of the questions asked in CDS II exam 2019 is mentioned below
1. Accommodate
2. Recommend
3. Argument
4. Decisive
5. Aggressive
6. Assassination
7. Embarrassment
Idiom/Phrases of the questions asked in CDS II exam 2019 is mentioned below
1. Dirt cheap- Extremely cheap
2. A shrinking violet - A shy person
3. Gordian knot - A difficult problem
4. Fall in a heap - To lose control of one's own feelings
5. Have a conscription fit - To be every angry
6. Be in seventh heaven - To be extremely happy
7. Hand in glove - Working together
8. Nip in the bud - Prevent a small problem before it becomes severe
9. Like a shag on the rock - Completely alone
10. A pearl of wisdom - An important piece of advice
SYNONYMS of the questions asked in CDS II exam 2019 is given below
1. Impounded - Confiscated
2. Impugned - Challenged
3. Innate -Intrinsic
4. Obligatory - Compulsory
5. Betrayal - Treachery
6. Narrowest - Widest
7. Akin - Similar
8. Attributed- Ascribed
9. Acquiring - Obtain
10. Desired - Wish for
ANTONYMS of the questions asked in CDS II exam 2019 is mentioned below
1. Beauty - Inelegance
2. Vulnerable - Impervious
3. Daunting - Demoralizing
4. Intimidation - Support
5. Constrain - Support
6. Plausible - Unthinkable
7. Plaintive - Gleeful
8. Discord - Accord
9. Insolent - Respectful
10. Incessant - Sporadic

CDS Exam Pattern 2020

The exam conducting authority prescribes the exam pattern and syllabus of CDS in official notification only. Candidates who will take CDS II exam will have to appear for 3 papers - General Knowledge, Elementary Mathematics and English while for those candidates who will appear for OTA will have to appear for 2 papers - General Knowledge and English. Each paper will be held for 2 hours and will carry questions of 100 marks. Each correct answer will fetch the candidates 1 mark whereas, for each incorrect answer, 0.33 marks will be deduced. It is to be noted that along with knowing exam pattern aspirants should also make notes for exam as a strategy of how to prepare for CDS. The table below contains the CDS written exam pattern 2020.

Exam pattern of CDS II 2020



Maximum Marks


2 Hours


General Knowledge

2 Hours


Elementary Mathematics

2 Hours


For Admission to Officers’ Training Academy



Maximum Marks


2 Hours


General Knowledge

2 Hours


CDS Result 2020

UPSC CDS exam result is announced in two stages - written and final result/ merit list. The written exam result of CDS 2020 has been declared in the form of PDF at the official website. The result of CDS I written exam contains the roll numbers and names of qualified candidates only. In order to check CDS result 2020, candidates have to click on the result link. Qualifying candidates of the written exam will be invited for the SSB Interview. The final result of UPSC CDS 2020 will mention the names of candidates who qualify SSB interview.

CDS Cutoff 2020

UPSC will release the cut off of CDS 2020 for written exam after the conclusion of the recruitment. Candidates who will secure equal to or more than the minimum cutoff marks will be considered qualified. Candidates who qualify the written exam will be eligible to appear for the next round of the selection process i.e. SSB Interview. Candidates must check CDS 2020 cut off to know the minimum marks required to qualify the exam. Candidates can check CDS previous years’ cut off from the table below.

Previous Years’ CDS II Cut off Scores (Written Exam)










105 (35%)





99 (33%)





138 (46%)

OTA (Men)




84 (42%)

OTA (Women)




84 (42%)

Check Important Links

CDS exam analysisCDS exam centres
CDS application formCDS admit card

Frequently Asked Question (FAQs) - CDS Answer Key 2020

Question: When will CDS 1 answer key 2020 be released ?


Leading coaching institute will release CDS 2020 answer key on February 2 in online mode

Question: Will I be able to check CDS answer key after the exam?


UPSC will not release the answer key right after the exam has been conducted, but many coaching institutes release the answer key after the exam which candidates can check on their websites. 

Question: Is there any facility to raise objections on CDS answer key?


No, candidates cannot challenge or raise objections on CDS answer key. 

Question: What is Online CDS Question Paper Representation Portal (QPRep)?


CDS 2020 Online Question Paper Representation Portal (QPRep) is a facility provided by UPSC where candidates can raise objections in the incorrect question or options given in the CDS question paper. This facility is only available for one week after the exam. 

Question: Is there any negative marking in CDS 2020 exam?


Yes, 0.33 marks are deducted for each incorrect answer attempted in CDS exam. 

Question: How will be the cut off of CDS 2020 decided?


CDS cutoff 2020 will be based on the number of candidates appearing for the exam, difficulty of the exam and number of vacancies. 

Question: When is the official and final answer key of CDS released?


The final answer key of CDS 2020 will be released after the final result of CDS i.e. after all stages of the exam have been conducted.

Question: What is selection process of CDS 2020 ?


As per CDS selection process candidates have to first appear in written exam and those who qualify they will have to appear for SSB interview process.

Question: If I do not agree with answers suggested by UPSC in official CDS 2020 answer key. Can I object the answer key ?


No candidates can object the the answer key of CDS 2020 published by UPSC, it is for reference only

Question: How can I calculate m marks from CDS 1 answer key 2020 ?


Candidates can check the answer key of CDS 2020 above this page and accordingly calculate their marks by following marking scheme

CDS Updates and Articles

Questions related to CDS

Showing 415 out of 415 Questions

Hello everyone As Im going to start my preparation for Cds so, can you please suggest me something regarding the study criteria or the books which I should prefer as I have enough time to prepare

Manish Singh 2nd Apr, 2020

For CDS EXAMINATION, you can start with going through the previous few years question papers and try solving them that will help you find where do you stand. you need to work on your written English language and skills as well as be upto date on the day to day general knowledge while having a elementary knowledge about mathematics.  You can start reading newspaper which will help you in general knowledge as well improve your English. You can also go for arihant publication books for CDS that can help as well.


Hello everyone Im going to start my preparation for Cds, so please suggest me something about studying criteria

Manish Singh 2nd Apr, 2020

For CDS EXAMINATION, you need to work on your written English language and skills as well as be upto date on the day to day general knowledge while having a elementary knowledge about mathematics.  You can start reading newspaper which will help you in general knowledge as well improve your English. You can also go for arihant publication books for CDS that can help as well


Will I be able to clear medical of CDS if i got my hand burnt by cracker and is ok now.

Priyaanka Sarkar Student Expert 31st Mar, 2020

In medical test, they usually check the Height, weight. They also check for amy visual, auditory deformities. They will take a Chest X ray to rule out any Chest infections. Hand burn is a scar and it us not a deformity or an illness. So if the rest of the parameters are good, then there should be no reason why you would not clear the Medical fitness test. All that matters is that you should be in good Physical and Mental health and be free from any deformity or disease that might interfere with performing your duties efficiently.


My date of birth is 10th july,1999.Can I apply for cds in 2023?

Soham sengupta 31st Mar, 2020

Hello aspirant,

Yes you can apply for CDS in 2023. According to CDS eligibility criteria candidate's minimum age should be 20 & maximum age should be 24 years. Candidate also have to pass their graduation or appearing for the final year to give the examination. To know more about CDS eligibility criteria click here


Is spectacles allow a candidates can select with spectacles

Rehan Alam Student Expert 26th Mar, 2020

Dear aspirant,

yes you can apply for CDS exam even if you have spectacles however you will not be able to get into the air force and flying department because of your spectacles.

you could however go for logistics and administration even if you have your spectacles.

Hope this helps. Thank you.

The question have been saved in answer later, you can access it from your profile anytime. Access now

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