CDS Vs NDA – Fundamental Difference Between NDA and CDS
By BYJU'S Exam Prep
Updated on: September 11th, 2023

The comparisons and differences discussed here will aid in developing a clearer picture of the NDA Vs CDS. Both these exams are the best entries to join Defence Forces in India. Through these entries, male and Female candidates can join the Indian Army, Indian Navy, and Indian Air Force. It is advised for aspirants to read this article to understand the differences between NDA and CDS.
This article has provided an insightful explanation of the frequently asked question, “Which is Better NDA or CDS?” Both exams are held twice a year, and there are numerous parallels and differences in recruiting, training, salary, incentives, promotion, eligibility, and so on.
Table of content
Difference Between NDA and CDS
The two exams and the chances they offer have many points in common and many points in difference. To make an informed decision, Defence applicants should know all the similarities and differences between the CDS exam and NDA Exam. Here, we have covered every aspect of NDA Vs CDS in various circumstances.
- The Indian Armed Forces’ National Defence Academy (NDA) is a joint services academy. The Army, Navy, and Air Force cadets train together before proceeding to their separate service schools for additional pre-commissioning training.
- The Combined Defence Services (CDS) test is used to select candidates for the Indian Military Academy, Officers Training Academy, Indian Naval Academy, and Indian Air Force Academy.
Note: Female candidates can only apply for OTA through CDS entry
Which is Better NDA or CDS?
The written CDS exam is more straightforward than the NDA exam. However, the recommendation of candidates for SSB is more stringent in CDS than in NDA. Every candidate studying for the Defence examination has one question in mind: Which one is better, CDS or NDA? The answer to this question is not straightforward as it depends on several factors in the article below.
NDA Vs CDS: Age Criteria
Knowing the age criteria is crucial before applying for the NDA or CDS Exam. The following table shows the difference in eligibility criteria for NDA and CDS exams.
Criteria | NDA Exam | CDS Exam |
Age Criteria | 16.5 years and 19.5 years | IMA:19 to 25 Years |
AFA: 19-23 Years | ||
INA: 19-22 Years | ||
OTA: 19-25 Years |
||
Who can Apply? | Both Male & Female Candidates can apply. | Both Male & Female Candidates can apply. |
CDS Vs NDA: Education Qualification
Candidates who have passed or will appear in class 12 are eligible to participate in the NDA. On the other hand, CDS is held for applicants who have completed or are about to graduate. The NDA exam is now open to female candidates. The following table shows differences in educational qualifications for NDA and CDS exams.
Criteria | NDA Exam | CDS Exam |
Education Qualification |
For Army Wing: 12th Class pass of the 10+2 pattern of School Education |
IMA and OTA: Bachelor’s Degree From a recognized university |
For Air Force and Naval Wings: 12th Class pass of the 10+2 pattern of School Education or equivalent with Physics, Chemistry, and Mathematics |
INA: Bachelors in Engineering from a recognized University | |
Air Force Academy (AFA): Graduation (with Physics and Mathematics at Class 12) or Bachelor of Engineering |
NDA Vs CDS: Training Period & Centers
NDA and CDS seem to have the same selection process: a written exam followed by an SSB interview. After completion of selection, candidates are sent for training at their respective academies. In the following table, we share the difference in the training period of NDA and CDS.
Details | NDA | CDS |
Training Period |
Approximately four to four and a half yrs NDA for three years and IMA for one yr (For Army cadets) Three years just at Naval Academy and one year at the Naval Defense Academy (For Naval cadets) NDA for three yrs and AFA Hyderabad for one and a half years (For AF cadets) |
CDS training seems to last 18 months, while IMA Cadets train for 18 months. Officers in the Navy can expect to be on the job for 37 to 40 months. Officers in the Air Force go through 74 weeks of training. |
Training Centres |
National Defence Academy, Khadakwasla, Pune Indian Military Academy, Dehradun Indian Naval Academy, Ezhimala Hyderabad’s Indian Air Force Academy |
Indian Military Academy (IMA) in Dehradun for Army cadets Indian Naval Academy in Ezhimala for Navy cadets, Officers Training Academy (OTA) in Chennai, Indian Air Force Academy in Hyderabad for Air Force Officers. |
CDS Vs NDA: Degree After Training
After the candidates complete the course, they are awarded a degree. In the following table, we share the NDA and CDS degrees after completion of training in the respective academies.
Details | NDA | CDS |
Degree after Training |
Army Cadets: Bachelor of Science/Bachelor of Science (Computer)/Bachelor of Arts/Bachelor of Science (Computer)/Bachelor of Science (Computer)/Bachelor of Science (Com Naval Cadets: Bachelor of Technology Bachelor of Technology degree for Air Force Cadets |
IMA Army Cadets: PG Diploma in Military and Defense Management. Post Graduate Diploma in Defence Management and Strategic Studies, OTA Chennai. |
NDA Vs CDS: Exam Pattern
Before applying for any Defence exam, candidates should know about the exam pattern. The following table shows the differences in NDA and CDS Exam Pattern.
Details | NDA | CDS |
---|---|---|
Total Number of Papers |
General Ability Test (GAT) Mathematics |
IMA, AFA, and INA: English, General Knowledge and Elementary Mathematics OTA: English and General Knowledge |
Exam duration |
2.5 hours each paper |
2 hours for each paper. |
Number of Questions |
GAT: 150 Mathematics: 120 |
Math: 100 English: 120 General Knowledge: 120 |
Total Marks |
Written Exam: 900 SSB Interview: 900 |
For IMA, INA, and AFA:- 300 OTA: 200 The SSB Interview for IMA, INA, and AFA is for 300 marks each while for OTA it is 200 |
CDS Vs NDA: Rank & Salary
Candidates will receive the rank of Lieutenant upon commissioning through NDA and CDS entry. In the following table, we share the rank and salary of officers through NDA and CDS entry.
Rank | Level | Grade Pay |
Lieutenant | Level 10 | ₹56,100 – 1,77,500 |
Captain | Level 10 B | ₹6,13,00 – 1,93,900 |
Major | Level 11 | ₹6,94,00 – 2,07,200 |
Lieutenant Colonel | Level 12A | ₹1,21,200 – 2,12400 |
Colonel | Level 13 | ₹1,30,600 – 2,15,900 |
Brigadier | Level 13A | ₹1,39,600 – 2,17,600 |
Major General | Level 14 | ₹1,44,200 – 2,18,200 |
Lieutenant General HAG Scale | Level 15 | ₹1,82, 200 – 2,24,100 |
HAG + Scale | Level 16 | ₹2,05,400 – 2,24,400 |
VCOAS/Army CDR/ Lieutenant General (NFSG) | Level 17 | ₹2,25,000/- (fixed) |
COAS | Level 18 | ₹2,50,000/- (fixed) |
BYJU’S Exam Prep NDA Online Coaching 2023 supports your exam preparation from every aspect. The online course contains unlimited live classes taught by expert teachers, NDA Mock Tests, and revision notes.
Also, check:
- CDS Study Material
- NDA Study Material
- CDS Previous Year Question Paper
- NDA Previous Year Question Paper
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