NDA 1 2026 Complete Information – Manasa Defence Academy The Union Public Service Commission (UPSC) conducts the National Defence Academy (NDA) Examination twice every year to recruit candidates for the Army, Navy, and Air Force wings of the NDA, as well as the Indian Naval Academy (INA). For aspirants who wish to join the armed forces as officers, NDA is one of the most prestigious and competitive exams in India. Here is the complete information about NDA 1 2026 along with how Manasa Defence Academy provides the best training to students to achieve success.