FAST FACTS Name of the exam: National Defence Academy (NDA) Age requirement: Minimum 16.5 years, maximum -19 years as on first day of the month the course is due to begin Educational qualification: 12th pass for Army and 12th pass with Physics and Mathematics for Navy and Air Force. You can even choose to apply while you are appearing for your 12th exam. That will save you a year. Marital status: Unmarried Exam held in the month of: The exam is conducted twice a year - every six months usually in April and August Preparation time: Start off after your class X (preferred) Mode of examination: Written test followed by an extensive Intelligence and Personality test Negative marking: Yes Classes begin in: July and January Before we get into the details about how to prepare for NDA, let us first understand a little bit about NDA and what a career in NDA means. NDA The NDA is the joint services academy of the Indian Armed Forc...