Hello,

The topics that are mainly included and also rounded as important for NDA exam are as follows:

• Algebra
• Matrices and Determinants
• Trigonometry
• Analytical Geometry of two and three dimensions
• Differential Calculus
• Integral Calculus and Differential Equations
• Vector Algebra
• Statistics and Probability

SSB Written Exam syllabus 

General English and Hindi

General Knowledge and Current Affairs

Numerical Ability :

Reasoning Ability 

hope this helps you !

All the best !