NDA – Main Role | Manasa Defence Academy The National Defence Academy (NDA) is the gateway to becoming an officer in the Indian Army, Navy, and Air Force, where leadership, discipline, and patriotism are shaped from a young age. NDA cadets are trained to lead troops, protect the nation, and serve with honour in all conditions. https://manasadefenceacademy.com/best-defence-academy-in-andhrapradesh/