Published 9 Nov 2026 · Solanki Defence Academy · Facts from the official notifications
‘NDA’ stands for National Defence Academy. It is a joint training institute for Army, Navy and Air Force officer cadets. Candidates aged 16.5‑19.5 years, with class‑12 (Physics‑Maths for Air/Navy), appear for a written test (900 marks) and a 5‑day SSB interview (900 marks). Selected cadets train for three years at NDA, Pune, before moving to their service academies.
What is NDA? – Full Form and Purpose
The National Defence Academy, abbreviated as NDA, is the premier joint training institute of the Indian Armed Forces. It brings together cadets of the Army, Navy and Air Force under one roof to develop a common foundation of military values, physical fitness and leadership. The academy’s purpose is to mould young men and women into future officers who can work together in joint operations. By sharing classrooms, drills and sports, cadets learn the spirit of teamwork that the modern battlefield demands.
The academy is located at Khadakwasla near Pune, a hill‑top campus that offers ample space for drills, sports fields and academic blocks. Cadets spend three years at this campus, receiving a blend of classroom instruction, physical training and character building activities. The curriculum balances science and engineering subjects with military tactics, map reading and weapon handling. Daily routines include early morning runs, obstacle courses and team games that develop stamina, discipline and camaraderie among the trainees.
Because India’s defence strategy increasingly relies on joint operations, the NDA’s integrated approach gives cadets a shared language and mutual respect before they join their separate service academies. This early exposure reduces inter‑service rivalry and improves coordination in future missions. Graduates leave the academy as well‑rounded officers, ready to continue specialized training at the Indian Military Academy, Indian Naval Academy or Air Force Academy, depending on their chosen wing and to serve the nation with honor.
- Full form: National Defence Academy
- Joint training of Army, Navy and Air Force cadets
- Campus at Khadakwasla, Pune
- Three‑year integrated training before service‑specific academy
Eligibility Criteria – Age, Education, Marital Status
Candidates must be between 16.5 and 19.5 years old on the date specified in the official notification. The age limit applies to both male and female aspirants. Only unmarried candidates are eligible, and the rule is strict for all services. Women have been permitted to apply since 2021, expanding the pool of potential officers.
The minimum academic qualification is the successful completion of class 12, or being a current class‑12 student appearing for the board exams. For the Army wing, any stream, science, commerce or arts, is acceptable. However, the Air Force and Navy wings require candidates to have studied Physics and Mathematics at the class‑12 level. This subject requirement ensures that future pilots and naval officers possess the necessary analytical foundation. Candidates lacking these subjects must choose the Army wing or wait for a different opportunity.
Only candidates who are not married at the time of application are eligible for selection. This rule applies uniformly across all three services, regardless of gender. The unmarried condition also includes those who are not in a legally registered partnership or living together as spouses. Since the official age and eligibility details can change with each notification, aspirants must read the latest UPSC notice carefully before filling the online form. Missing any condition can lead to disqualification at later stages.
- Age range: 16.5 to 19.5 years on the date given in the notice
- Unmarried status required for all services
- Women eligible to apply since 2021
- Class 12 passed or appearing is mandatory
- Army wing accepts any stream; Air Force and Navy need Physics and Maths
Exam Structure – Written Test Details
The Union Public Service Commission (UPSC) conducts the NDA written examination twice a year. Each cycle opens an online application window, after which candidates appear for a single day of testing at designated centers across the country. The written stage is the first hurdle and determines who proceeds to the next selection phase. Since the schedule repeats bi‑annually, aspirants have two chances each year to attempt the test, provided they meet the eligibility criteria.
The test comprises two papers. Paper I is Mathematics, carrying 300 marks and lasting 2.5 hours. It assesses algebra, geometry, trigonometry, calculus and statistics at the class‑12 level. Paper II is the General Ability Test, worth 600 marks and also timed for 2.5 hours. This paper evaluates English language skills, general knowledge, physics, chemistry, history, geography and current affairs. Both papers are objective type, with multiple‑choice questions and negative marking for wrong answers.
The combined score of both papers forms a total of 900 marks. This raw score is later converted into a merit list that is combined with the 900‑mark SSB interview score to produce a final merit out of 1,800 marks. Candidates need to achieve a competitive score to be shortlisted for the Service Selection Board (SSB) phase. Exact cut‑off marks vary each cycle, so aspirants should refer to the latest UPSC notification for the required benchmark.
- Two papers: Mathematics and General Ability Test
- Mathematics: 300 marks, 2.5 hours
- General Ability Test: 600 marks, 2.5 hours
- Total written marks: 900
- Objective type with negative marking
- Exam held twice a year
SSB Interview – Process and Marks
After clearing the written exam, candidates face the Service Selection Board (SSB) interview, which lasts five days. The SSB evaluates personality, leadership, teamwork and decision‑making through a series of tasks such as group discussions, group planning exercises, outdoor obstacle courses and personal interviews. Physical fitness drills, including timed runs and high‑jump, are also part of the schedule, reflecting the academy’s emphasis on stamina. The five‑day format allows assessors to observe candidates in varied situations.
The SSB interview carries a maximum of 900 marks. These marks are divided among psychological tests, group tasks and the personal interview. Psychological tests include the Thematic Apperception Test and the Word Association Test, each contributing to the overall score. Group tasks such as the Group Discussion and Group Planning Exercise assess communication and leadership, while the personal interview gauges confidence and motivation. All components together determine the 900‑mark SSB score.
The SSB score is added to the written exam score of 900 marks, giving a combined merit out of 1,800 marks. Candidates who achieve a high combined score are called for a final medical examination to confirm fitness for service. Only those who clear the medical test are eligible for final selection and commissioning. The exact cut‑off for the combined merit varies each cycle, so aspirants must check the latest UPSC notification for the required threshold.
- Duration: five days
- Maximum SSB marks: 900
- Components: psychological tests, group tasks, personal interview
- Combined merit out of 1,800 marks (written + SSB)
- Medical clearance required after SSB
Medical Examination and Final Merit
The medical examination is the last gate before a candidate can be placed in the final merit list. It checks vision, hearing, blood pressure, cardiovascular health and overall physical fitness. Only candidates who receive a medical clearance are allowed to have their written and SSB scores counted toward the final ranking. The merit list is prepared after the medical report is received, so a fit certificate is essential for selection.
The medical test is scheduled after the five‑day SSB interview. Candidates must bring their original certificates, recent photographs and any prescribed medicines. The examiners measure height, weight, chest expansion and conduct a detailed health questionnaire. If any condition is found that does not meet the prescribed standards, the candidate is declared medically unfit and is removed from further consideration regardless of earlier scores.
Final merit is calculated out of a total of 1,800 marks. The written examination contributes 900 marks and the SSB interview also contributes 900 marks. Medical fitness does not add marks but acts as a qualifying condition; a candidate who is medically unfit is excluded from the merit list even if the combined written and interview score is high. Always refer to the latest UPSC notification for any change in medical standards.
- Written exam (900) + SSB interview (900) = total merit of 1,800
- Medical clearance is mandatory for merit ranking
- Medical test follows the SSB interview
- Unfit candidates are removed from the final list
- Check the official UPSC notification for current medical criteria
Training at National Defence Academy – Duration and Curriculum
Selected cadets spend three years at the National Defence Academy, Khadakwasla, Pune. The academy provides joint training for the Army, Navy and Air Force wings. During this period cadets live together, share classes and undergo rigorous physical and academic schedules designed to build a strong defence mindset and teamwork skills.
The curriculum blends classroom teaching with extensive physical activities. Academic subjects include engineering basics, sciences, and humanities, while daily physical drills cover timed runs, high jump, long jump, gola and beam exercises. Cadets also learn weapon handling, map reading, leadership drills and participate in sports and adventure activities that develop endurance and courage.
After completing the three‑year NDA program, cadets move to their respective service academies for about one year of specialised training. Army cadets join the Indian Military Academy, Navy cadets go to the Indian Naval Academy and Air Force cadets attend the Air Force Academy. Successful completion leads to commissioning as officers.
- Three years of joint training at NDA, Pune
- Academic studies plus daily physical drills (runs, jumps, gola, beam)
- Leadership, weapon handling and adventure activities
- One‑year specialised training at service academy
- Joint living fosters teamwork across services
Career after NDA – Commission and Pay
On graduation, cadets are commissioned as Lieutenants in the Army or as equivalent junior officers in the Navy and Air Force. The commission marks the start of a professional military career, with responsibilities that include leading troops, managing equipment and participating in operations both within India and abroad.
The initial pay scale is Pay Level 10. The basic pay is Rs 56,100 per month and it is supplemented by a Military Service Pay of Rs 15,500. These amounts are fixed by the government and are the same for all newly commissioned officers, irrespective of the service branch.
Beyond the basic pay, officers receive allowances for housing, transport, and other duties, which increase with rank and posting. Career progression follows a structured promotion path, with opportunities for further training, higher education and command positions as experience and performance grow.
- Commissioned as Lieutenant (or equivalent)
- Basic pay Rs 56,100 per month at Pay Level 10
- Military Service Pay Rs 15,500 per month
- Standard allowances added to basic pay
- Promotion and further training opportunities
Next Steps for Aspirants – How to Prepare and Apply
Begin preparation as soon as class 12 is completed. Focus on the two written subjects: Mathematics and General Ability Test. Use standard textbooks, solve previous years’ question papers and take timed mock tests. Strengthen concepts in physics and chemistry if you aim for the Air Force or Navy wings, as they require those subjects in class 12.
Physical fitness must be built alongside academics. Practice timed runs, high jump, long jump, gola and beam exercises every morning. Maintain a balanced diet and get regular health check‑ups to ensure you meet the medical standards. Consistent training reduces the risk of injury and improves confidence for the SSB tasks.
Watch the official UPSC notification for the exact dates and online application link. Register on the UPSC portal, fill in personal details, upload required documents and pay the prescribed fee. After submission, keep a copy of the acknowledgment and regularly check the portal for admit cards and further instructions.
- Check the UPSC notification and note the application window
- Register online and submit required documents
- Prepare written exam with maths and GA focus
- Maintain daily physical training (runs, jumps, gola, beam)
- Build fitness for the medical test
- Prepare for the five‑day SSB interview
- NDA = National Defence Academy, a tri‑service training institute
- Eligibility: 16.5‑19.5 yr, class‑12 passed, unmarried; Physics‑Maths needed for Air/Navy
- Selection through 900‑mark written exam and 900‑mark SSB interview
- Selected cadets undergo 3 years training at NDA before commissioning as Lieutenants
Frequently asked questions
What does NDA stand for?
NDA stands for National Defence Academy, the joint training centre for Army, Navy and Air Force officer cadets.
Who can apply for NDA?
Unmarried candidates aged 16.5‑19.5 years with class‑12 qualification (Physics‑Maths for Air/Navy) can apply.
What is the pattern of the NDA written exam?
The written exam has Mathematics (300 marks, 2.5 hrs) and General Ability Test (600 marks, 2.5 hrs), total 900 marks.
How long is the SSB interview for NDA?
The SSB interview lasts five days and carries 900 marks.
What is the training duration after selection?
Selected cadets train for three years at the National Defence Academy, Pune, before proceeding to their service academy.
Physical and written preparation on one campus in Adampur, Bhagalpur, with hostel and mess, run by Ranjit Singh Solanki, Ex-Para Commando. +91 97982 20164