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Join the No.1 NDA coaching institute in Dehradun and get selected in NDA with our thoughtfully designed curriculum and classroom study material. We believe that every success depends upon a good planning and thus, we lay special emphasis on study material, mock tests, question banks and online/offline tests.

So if you want to join the NDA , your best choice will be Sai Defence Academy.

Extensive and focused preparation for NDA written examination is being professionally carried out by Sai Defence Academy. Sai Defence Academy is a competent and committed institute which conducts an articulately designed NDA training coaching course and comprehensively covers all aspects of the prescribed syllabus of General English, Mathematics and General Awareness/Ability. Besides laying emphasis on enhancing the basic knowledge of the aspiring candidates to successfully tackle the exam, the diverse and exhaustive question bank, based on previous 10 years question papers is also solved and explained to the students thoroughly by our experts. This automatically boosts their overall grades for scoring high in the final merit list.

Sai Defence Academy is a premier and No.1 NDA coaching Institute. The Vision of Sai Defence Academy is to provide best coaching to candidates so that they may excel in their exams, and set bench marking standards in academic and physical training. The mission of Sai Defence Academy is to bring out the best in candidates, turning potential cadets into potential officers to join the National Defence Academy for guarding our country.

Sai Defence Academy is a specialized institution to train young aspirants thriving to be officers in the defence services. Some of the faculty members have also worked in SSB in various capacities and therefore everyone is abreast with the latest techniques of selection procedures. The complete training is imparted through use of ‘State of Art’ technology and modern techniques of teaching. The teaching-learning process at the academy aims at maintaining a high quality and effective learning in a natural environment. The academy has already made a name for itself among the leading institutions of its kind.

Examination Details

Forms Availability Jun and Dec as notified by UPSC
Exam Schedule April & September
Age Between 16½ to 19½ as of first day of the month in which course is due to commence.
Gender Male candidates only. Women cannot apply for NDA
Marital Status Unmarried
Selection Procedure Written Exam conducted by UPSC
SSB Interview

Exam Pattern

Subject Paper Code Duration Questions Maximum Marks
Mathematics 01 2½ Hours 120 300
General Ability Test 02 2½ Hours 150 600
Total - - - 900
SSB Interview - - - 900

Marking Pattern

Subject Marks Awarded per Question Negative Marking
Mathematics 2.5 Marks 0.83
General Ability Test 4 Marks 1.33
Paper-I (Maths) Topics Covered Paper-II (General Ability) Topics Covered
Trigonometry Biology
Algebra Chemistry
Probability Physics
Matrices & Determinants History
Analytical Geometry Civics
Differential calculus Geography
Integral calculus English
Vector algebra Current Affairs

Best NDA Coaching Institute


The Sai Defence Academy campus provides unmatched infrastructure. Our classrooms for coaching are air conditioned and well supported by modern audio visual technological aids and 24 hrs power back up.


We have highly qualified, experienced and updated faculty for NDA coaching who provide students the right guidance to get best results in the exam. Students are coached by experienced faculty members sometimes by taking extra classes also.

Fully equipped library

It’s only Sai Defence Academy that offers the facility of a fully equipped library and important books pertaining to the syllabus of the examination / competitive exam. Students can issue these books for self study, revision, practice etc, whenever required.

Study Room/ Reading Room

On campus study/ reading rooms are available to provide students with quiet and peaceful environment, perfect for self study and preparations.

Motivational Lectures and Movies

Sai Defence Academy specializes in motivating the youth towards serving our great nation. Students from all over the country interact among themselves working towards a common goal. Motivational lectures and movies shown leave the students inspired to do something for the country and become better human beings.

Discipline & Time Management

Sai Defence Academy is a Defence coaching institute with strict rules that all students must abide by. All students are expected to follow the honour code and discipline code of conduct of Sai Defence Academy, failing which they may be expelled. These guidelines enforced by the Institute inculcate good values and discipline in the students.

Physical Fitness Training (PFT)

Being academically fit is just half the battle won. In order to become a respectable armed force candidate, the students need to be physically fit in order to clear the physical fitness test held in the defence competitive exams. For that Sai Defence Academy students are prepared and trained to pass the physical training tests. The PFT is done under the supervision of ex. army officers and in the presence of doctors and physiotherapists to avoid any untoward incident.

icon Wall of Fame

Our SSB Expert Team


NDA Guru Alok P Jasola

Defence Expert & Motivator


Major K.S.Arora



Cdr. H.S. Arora



Colonel H.S.Mann


Students from all over India.