The National Defence Academy (NDA) is the Joint Services academy of the Indian Armed Forces, where cadets of the three services, the Army, the Navy and the Air Force train together before they go on to pre-commissioning training in their respective service academies. The NDA is located at Khadakwasla near Pune, Maharashtra. It is the first tri-service academy in the world. The NDA offers only a full-time, residential undergraduate programme. Cadets are awarded a Baccalaureate degree (a Bachelor of Arts or a Bachelor of Science or a "Bachelor of Technology" ) after 3 years of study. Cadets have a choice of two streams of study. The Science stream offers studies in Physics, Chemistry, Mathematics and Computer Science. The Humanities (Liberal Arts) stream offers studies in History, Economics, Political Science, Geography and Languages.