The NDA examination conducted by the Union Public Service Commission (UPSC) is one of the most competitive entrance exams in India. Candidates are tested in Mathematics, General Ability, English, Current Affairs, and reasoning skills. After clearing the written examination, candidates must also qualify for the SSB interview, which evaluates personality, leadership, communication skills, and officer-like qualities. https://minervadefenceinstitute.in/nda-national-defence-academy/