Combined Defence Services

 

The Combined Defense Services (CDS) provides excellent career opportunities for young and courageous individuals who nurture a strong feeling of patriotism. UPSC conducts CDS examination, twice every year for the selection in Indian Armed Forces, Army, Navy and Air Force.

The selection process consists of a written exam and personality test by the Service Selection Board. After the final selection, the candidates are sent to, depending upon their choice indicated in the application forms and merit list ranking, one of the following institutes for orientation training:

  • Indian Military Academy (IMA), Dehradun
  • Naval Academy, Goa
  • Air Force Academy, Begumpet, Hyderabad
  • Officers Training Academy (OTA), Chennai

Those joining the first three institutes get permanent commission, however cadets passing out of OTA get short service commission.

Only unmarried men and women can apply for the combined defense services.


CDS: Important Dates

  • Date of Notification: 29.10.2011
  • Last Date of Receipt of Applications: 28.11.2011
  • Date of commencement of Examination: 12.02.2012        (SUNDAY)
  • Duration of Examination: 1 DAY
 
CDS Examination Pattern

The entrance for Central Defense Services comprises of a Written Exam followed by and Intelligence and Personality Test.The details follow:

Written Examination for Indian Military Academy, Naval Academy and Air Force Academy

Paper

Subject

Duration

Maximum Marks

I

English

2 hours

100

II

General Knowledge

2 hours

100

III

Elementary Mathematics

2 hours

100

Total

300

Written Examination for Officers' Training Academy

Paper

Subject

Duration

Maximum Marks

I

English

2 hours

100

II

General Knowledge

2 hours

100

Total

200

General (but important) instructions about written examination

  • The papers in all the subjects will consist of Objective (multiple choice answer) Type questions only.
  • SI units will be used in the papers and Candidates should use only International form of Indian numerals (i.e. 1,2,3,4,5,6 etc.) while answering question papers.
  • Commission have discretion to fix qualifying marks in any or all the subjects of the examination.
  • Candidates are not permitted to use calculators for answering objective type papers (Test Booklets). They should not, therefore, bring the same inside the Examination Hall.

For more detailed exam instructions for Conventional and Objective type papers go through Exam Instructions

For Syllabus of the papers check the CDS Subject list.

Interview

  • The Union Public Service Commission will declare a qualified list of candidates (based on the written exam).
  • The selected candidates will appear before a Services Selection Board for Intelligence and Personality Test.
  • The total maximum marks for the interview will be 200 for OTA and 300 for IMA, Naval and Air Force.
  • Candidates for the Air Force wing and Naval Aviation will also undergo a Pilot Aptitude Test.

Two Stage Selection Procedure

  • Two stage selection procedure will be based on Psychological Aptitude Test and Intelligence Test.
  • All the candidates will be put to stage one test on first day of reporting at Selection Centres.
  • Only those candidates who qualify at stage one will be admitted to the second stage.
  • Those candidates who qualify stage II will be required to submit the original Certificates along with one photocopy each of :
    • Original Matriculation pass certificate or equivalent in support of date of birth
    • Bachelors Degree alongwith mark sheets in support of educational qualification
  • For final qualification, candidates should secure the minimum qualifying marks separately in (i) Written examination and (ii) SSB test as fixed by the Commission in their discretion.
  • Qualified candidates will then be placed in the final order of merit on the basis of total marks secured by them in the Written examination and the Services Selection Board Tests.
  • The final selection for admission will be made in order of merit depending on the number of vacancies in each wing.
  • The selection will be subject to medical fitness and suitability in all other respects.

More on Interviews in Interview Section.

Eligibility for CDS

Nationality:

A candidate must be either:

(a) A citizen of India, or
(b) a subject of Nepal, or
(c) a subject of Bhutan, or
(d) a Tibetan refugee who came over to India before 1st January, 1962 with the intention of permanently settling in India. or
(e) a person of Indian origin who has migrated from Pakistan, Burma, Srilanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia and Vietnam with the intention of permanently settling in India.

  • Provided that a candidate belonging to categories (b), (c), (d) and (e) shall be a person in whose favour a certificate of eligibility has been issued by the Government of India.
  • Certificate of eligibility will not, however, be necessary in the case of candidates who are Gorkha subjects of Nepal.

Age Limits:

  • IMA: Candidates born not earlier than 2nd January, 1984 and not later than 1st January, 1989
  • Naval Academy: Candidates born not earlier than 2nd January, 1986 (2nd January, 1984 in case of NCC/Naval Wing ‘C’ Certificate holders) and not later than 1st January, 1989
  • Air Force Academy: Candidates born not earlier than 2nd January, 1985 and not later than 1st January, 1989
  • Officers Training Academy (Men): Candidates born not earlier than 2nd January, 1983 and not later than 1st January, 1989
  • Officers Training Academy (Women):
  • Candidates born not earlier than 2nd January, 1983 and not later than 1st January, 1989.
  • Widows of Defence Personnel who have died in harness, will be granted age-relaxation of four years in the upper age limit, they should have been born not earlier than 2nd January, 1979 and not later than 1st January, 1989.

NOTE:

Date of Birth Certificate:

The date of birth accepted by the Commission is that entered in the Matriculation or Secondary School Leaving Certificate or in a certificate recognised by an Indian University as equivalent to Matriculation or in an extract from a Register of Matriculates maintained by a University, which extract must be certified by the proper authority of the University or in the Higher Secondary or an equivalent examination certificate.

No other document relating to age like horoscopes, affidavits, birth extracts from Municipal Corporation, service records and the like will be accepted.

Once the date of birth is recorded in the Commission, no change will be allowed subsequently (or at any other Examination of the Commission) on any grounds whatsoever.

Sex and Marital Status:

  • For IMA, Naval and Air Force Academy, only unmarried male candidates are eligible.
  • For OTA the male candidate can either be married or unmarried.
  • Female candidates are only eligible for the OTA if:
  • Female candidate should be unmarried, or issue less widowed or issue less divorcees.
  • Female candidates who are widowed of defense personnel who died in harness may or may not have children

NOTE:

Candidates who are eligible when unmarried, must undertake not to marry until they complete their full training. A candidate who marries during training shall be discharged and will be liable to refund all expenditure incurred on him by the Government.

Educational Qualifications:

For admission to the examination, a candidate must have:

  • I.M.A. and Officers’ Training Academy (OTA):Degree of a recognised University or equivalent.
  • Naval Academy: B.Sc. (with Physics & Mathematics) or Bachelor of Engineering.
  • Air Force Academy :Degree of Recognized University (with Physics and Mathematics at 10+2 level) or Bachelor of Engineering.

Proof of Graduation:

  • Graduates with first choice as Army/Navy/Air Force are to submit proof of graduation provisional certificates on the date of commencement of the SSB Interview at the SSB.
  • Candidates who are studying in the final year Degree course and have yet to pass the final year degree examination can also apply but they will be required to submit proof of passing the degree examination to reach the following address and deadline.
  • IMA/OTA as first choice: 
    Address: Army HQ/Rtg. CDSE Entry, West Block III, R K Puram, New Delhi-110066
    Deadline: 15thNovember, 2007 (IMA), 1stFebruary, 2008.
  • Navy as first choice: 
    Address: Naval HQ “DMPR” (R&R Section), 
    Room No. 204, ‘C’ Wing, Sena Bhawan, New Delhi-110011
    Deadline: 15thNovember, 2007.
  • Air Force as first choice:
    Address: PO3(A)/Air Headquarters, ‘J’ Block, Room No. 17, Opp. Vayu Bhawan,
    Motilal Nehru Marg, New Delhi-110011
    Deadline: 15thNovember, 2007.
  • Candidates possessing professional and technical qualifications which are recognised by government as equivalent to professional and technical degrees would also be eligible for admission to the examination.
  • Note I:Candidates who are debarred by the Ministry of Defence from holding any type of commission in the Defence Services shall not be eligible for admision to the examination and if admitted, their candidature will be cancelled.
  • Note II: In the event of Air Force candidates being suspended from Flying training for failure to learn flying, they would be absorbed in the Navigation/Administration/Logistic Branch of the IAF. This will be subject to availability of vacancies and fulfilling the laid down qualitative requirements (including 60% in graduation).
CDS Physical Standards

A number of candidates who clear the initial selection process are rejected on Medical examination. It is therefore advisable to understand the requirements and get themselves medically examined before appearing for exams just to avoid any disappointments.

Medical Examination Process:

  • A candidate recommended by the Services Selection Board will undergo a medical examination by a Board of Service Medical Officers.
  • Women candidates will undergo Medical Examination by a Medical Board comprising male/ female doctors/ specialists/ Gynecologist. There will be a lady Medical Officer as member of Board.
  • The proceedings of the Medical Board are confidential and will not be divulged to anyone.
  • The candidate declared unfit will be intimated by the President of the Medical Board.
  • The candidate will also be intimated about the procedure for Appeal Medical Board.
  • Candidates declared unfit during Appeal Medical Board will be intimated about the provision of Review Medical Board.
  • Candidates declared unfit during Appeal Medical Board will be intimated about the provision of Review Medical Board.

Candidates must be Physically and Mentally fit according to the prescribed standards. The detailed guidelines are given below.

General Physical and Mental Standards

  • The candidate must be in good physical and mental health and free from any disease/disability which is likely in interfere with the efficient performance of military duties.
  • It is advised to undergo a preliminary medical check-up for wax in ears, refractory error of eyes, fungal infection of skin and also gynaecomasties, etc for female candidates before reporting for the SSB interview.
  • A candidate should have no past history of mental breakdown or fits.
  • There should be no evidence of weak constitution, bodily defects or under weight.
  • The candidate should not be overweight or obese.
  • Chest should be healthy.
    • The minimum range of expansion after full inspiration should be 5 cms.
    • X-Ray of the chest is compulsory and will be taken to rule out any disease of the chest.
  • There should be no disease of bones and joints of the body.

Height and weight standards

Height/Weight Standards for Male Candidates

Height (in cm)

Weight (in kg)


18 years

20 years

22 years

152

44 (45 navy)

46

47

155

46

48 (47 navy)

49

157

47

49

50

160

48

50

51

162

50

52

52

165

52

53

55

168

53

55

57

170

55

57

58

173

57

59

60

175

59

61

62

178

60

62

63

180

63

64

65

183

65

67

67

185

67

69

70

188

70

71

72

190

72

73

74

193

74

76

77

195

77

78

78


Height/Weight Standards for Female Candidates

Height (in cm)

Weight (in kg)


20 years

25 years

30 years

150

39

41

43

153

40

47.2

43.5

155

43

44

46

158

45

46

48

160

46

47

49

163

47

49

51

165

49

51

53

168

50

52

54

  • Minimum acceptable height for male candidates is 157.5 cms. (157 for Navy and 162.5 cms for Air Force)
  • For women candidates, minimum acceptable height is 152 cms.
  • For Gorkhas and individuals belonging to hills of North Eastern regions of India, Garhwal and Kumaon, minimum acceptable height will be 152.5 cms.
  • For candidates from Lakshadweep, minimum acceptable height can be reduced by 2 cms.
  • The above concessions are not applicable for Navy and Air Force
  • A ± 10% (for Navy and Air force) departure from the average weight given in the table is considered within normal limit.
  • For individuals with heavy bones and broad build as well as individuals with thin but otherwise healthy, this limit may be further relaxed to some extent on merit.

Teeth Conditions

  • The candidates should have sufficient number of natural and sound teeth.
    • A minimum of 14 dental points will be acceptable.
    • A candidate should not be suffering from severe pyorrhoea.

Ear, Nose and Throat Conditions

  • The hearing should be normal.
  • A candidate should be able to hear a forced whisper with each ear at a distance of 610 cms in a quite room.
  • There should be no evidence of present or past disease of the ear, nose and throat.
  • Audiometric test will be done for AF. Audiometric loss should not exceed+20 db in frequencies between 250Hz and 4000 Hz.

Vision Standards

  • Male
    • A candidate should be able to read 6/6 in a distant vision chart with each eye with or without glasses (For navy and Air Force without glasses only).
      • Myopia should not be more than 3.5D
      • Hypermetropia should not be more than 3.5D including Astigmatism.
  • Women
    • A candidates should be able to read 6/6 (better eye) and 6/8 (worse eye) in a distant vision chart with or without glasses
    • Myopia should not be more than minus 5.5 including Astogination.
    • Internal examination of the eye will be done by means of ophthalmoscope to rule out any disease of the eye.
    • A candidate must have good binocular vision.
    • The colour vision standard will be CP-III.
    • A candidate should be able to recognise red and green colours.

Radial keratotomy and Laser Surgery

  • Candidates who have undergone or have the evidence of having undergone Radial Keratotomy, to improve the visual acuity, will be permanently rejected for all the three services.
  • In orer to detect PRK/LASIK all the candidates at SMB will be subjected to the measurement of Axial length by A-Scan biometer.
  • Candidates who have undergone Laser Surgery for correction of refractive error will be considered for commission in Army if they fulfill following criteria:
    • Age more than 20 years.
    • Uncomplicated stable LASIK/Excimer (PRK) laser procedure done for Myopia or Hypermetropia, with stable refraction for a period of six months after the procedure.
    • A healthy retina.
    • Corrected vision should be 6/6 in better eye and 6/9 in worse eye, with maximum residual refraction of +1.50 in any meridian for myopia or hypermetropia.
    • Axial length within permissible limits.

Other Physical Ailments

  • There should be no signs of functional or organic disease of the heart and blood vessels.
  • Blood pressure should be normal.
  • The muscles of abdomen should be well developed and there should be no enlargement of liver or spleen.
  • Any evidence of disease of internal organs of the abdomen will be a cause for rejection.
  • Un-operated hernias will make a candidate unfit. In case of Hernia which has been operated, a minimum of 1 year must have passed prior to final medical examination.
  • There should be no hydrocele, varicocele or piles.
  • Urine examination will be done and any abnormality if detected will be a cause for rejection.
  • Any disease of skin which is likely to cause disability or disfigurement will also be a cause for rejection.
  • For women candidates if pregnancy is detected at any stage, after selection at SSB or during training will debar the candidates including issue less widow divorcee from grant of commission.

Standards for Air-Force

In addition to the above, the following medical standards will be applicable in respect of Air force candidates only:

  • X-ray of Cervical and Lumbosacral spine will be carried out. The following conditions detected in the X-ray will be disqualifying :
    • Granulomatius disease of spine.
    • Arthritis/spondylosis
    • Scoliosis more than 15 degree as measured by Cobb’s Method (10 degree for Army).
    • More than mild Kyphosis/Lordosis
    • Spondylolisthesis/Spondylosis.
    • Herniated nucleus pulposes.
    • Compression fracture of Vertebra.
    • Sacaralisation Disease
    • Cervical ribs with demonstrable neurological or Circulatory deficit.
    • Presence of Schmorl’s node at more than one level.
    • Atlanto-occipital, and atlanto-axial anomalies.
    • Incomplete Sacaralisation Unilateral or Bilateral
    • Spinabifida other than SV 1 and LV 5
    • Any other abnormality, if so considered by specialist.

Anthropometric (Body) Measurements for Air Force Pilot

Leg length

99.00cm – 120.00cm

Thigh length

Max 64.00cm

Sitting height

81.50cm – 96.00cm

  • Carrying angle of elbow should not be more than 100 (ten degree).

Vision Standards

Uncorrected without glass

6/6, 6/9

Corrected with glass

6/6 (only for Hypermetropia)

Limits of Myopia

Nil

Limits of Hypermetropia

+2.00 D Sph

Colour Vision

CPI (MLT)

Astigmatism

+0.75 Cyl

Near Vision

N-5 each eye

  • Binocular Vision Must possess good binocular vision (fusion and Stereopsis with good amplitude and depth)
  • Ocular Muscle Balance Heterophoria with the Maddox Rod Test must not exceed:
  • At 6 meters :
    • Exophoria 6 prism dioptres.
    • Esophoria 6 prism dioptres.
    • Hyper/Hypophoria 1 prism dioptre.
  • At 33 cms.:
    • Exophoria 16 prism dioptres.
    • Esophoria 6 prism dioptres
    • Hyper/Hypophora 1 prism dioptres.

The Medical standards for candidates of Naval Aviation Branch will be the same as for flying duties of Air Force.

CDS Exam Centers

AGARTALA

GANGTOK

PANAJI (GOA)

AHMEDABAD

HYDERABAD

PATNA

AIZAWL

IMPHAL

PORT BLAIR

ALLAHABAD

ITANAGAR

RAIPUR

BANGALORE

JAIPUR

RANCHI

BAREILLY

JAMMU

SAMBALPUR

BHOPAL

JORHAT

SHILLONG

CHANDIGARH

KOCHI

SHIMLA

CHENNAI

KOHIMA

SRINAGAR

CUTTACK

KOLKATA

THIRUVANANTHAPURAM

DEHRADUN

LUCKNOW

TIRUPATI

DELHI

MADURAI

UDAIPUR

DHARWAR

MUMBAI

VISHAKHAPATNAM

DISPUR

NAGPUR


  • The centres mentioned above are liable to be changed at the discretion of the commission. In such case the commission will inform the admitted candidates.
  • No request for change of centre will normally be granted.
  • A request in change if center should be addressed to the Secretary, Union Public Service Commission giving full justification as to why he/she desires a change in centre.
CDS Exam Syllabus

Subjects for CDS Exam

English

General Knowledge

Elementary Mathematics

 Elementary Mathematics Syllabus

Arithmetic

Number System-Natural numbers, Integers, Rational and Real numbers. Fundamental operations addition, subtraction, multiplication, division, Square roots, Decimal fractions.

Unitary method-time and distance, time and work, percentages, applications to simple and compound interest, profit and loss, ratio and proportion, variation.

Elementary Number Theory- Division algorithm. Prime and composite numbers. Tests of divisibility by 2,3,4,5,9 and 11. Multiples and factors. Factorisation Theorem. H.C.F. and L.C.M. Euclidean algorithm, Logarithms to base 10, laws of logarithms, use of logarithmic tables.

Algebra

Basic Operations, simple factors, Remainder Theorem, H.C.F., L.C.M. Theory of polynomials, solutions of quadratic equations, relation between its roots and coefficients (Only real roots to be considered). Simultaneous linear equations in two unknowns-analytical and graphical solutions. Simultaneous linear equations in two variables and their solutions. Practical problems leading to two simultaneous linear equations or inequations in two variables or quadratic equations in one variable & their solutions. Set language and set notation, Rational expressions and conditional identities, Laws of indices.

Trigonometry

Sine x, cosine x, Tangent x when 0 deg < x < 90 deg

Values of sin x, cos x and tan x, for x = 0 deg, 30 deg, 45 deg, 60 deg and 90 deg 

Simple trigonometric identities.

Use of trigonometric tables.

simple cases of heights and distances.

Geometry

Lines and angles, Plane and plane figures, Theorems on (i) Properties of angles at a point (ii) Parallel lines, (iii) Sides and angles of a triangle, (iv) Congruency of triangles, (v) Similar triangles, (vi) Concurrence of medians and altitudes, (vii) Properties of angles, sides and diagonals of a parallelogram, rectangle and square (viii) Circles and its properties including tangents and normals, (ix) Loci.

Mensuration

Areas of squares, rectangles, parallelograms, triangle and circle. Areas of figures which can be split up into these figures (Field Book), Surface area and volume of cuboids, lateral surface and volume of right circular cones and cylinders, surface area and volume of spheres.

Statistics

Collection and tabulation of statistical data, Graphical representation frequency polygons, histograms, bar charts, pie charts etc. Measures of central tendency.

 
 
 
 
 
 
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