- Mathematics : Mathematics is the first paper in NDA exam. Defence Services Academy is the first to have 3 professors for teaching Mathematics and 1 for conducting the examination. Class XI syllabus is not neglected and is taught by the professors at DSA. JEE & NDA exam mock test are also conducted. Some of the books used are State Board Mathematics, CBSE/NCERT Mathematics, R.S. Agrawal NDA Mathematics, PathFinder NDA Mathematics, NCERT Objective Mathematics & IIT Level Mathematics books.
- English : Most of the Class XI, XII students do not include English in their preparation for JEE, NEET exams. But if you’re preparing for UPSC/MPSC along with NDA, you must prepare for at least 8-10 objective type questions of English. English for NDA/UPSC/MPSC can be prepared within 3-4 months. But daily practice is still necessary after finishing the studies, hence we also conduct exams regularly. Defence Services Academy has 2 CBSE experienced lecturers for English, Prof. N.R. Ghai, Prof. Deepak Sharma, along with a Guest Lecturer Dr. Ashish Paaliwal.
- Science : Basic Knowledge of Physics, Chemistry & Biology is a must for an NDA Officer. Here, at DSA, we have 2 professors for each subject, who also prepare students for NDA/JEE & NEET. Generally, science syllabus for NDA is less as compared to JEE. The questions asked in NDA exam are easier as compared to JEE & NEET.
- SSB Interview & Personality Development : Defence Services Academy conducts a special 3 hour class, every Sunday, for SSB Interview & Personality Development. It includes activities like Speech, Group Discussion, Essay. Students are trained especially for the SSB Interview.
English 
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