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 respective service academies for further pre-commissioning training. The NDA is located in Khadakwasla, Pune, Maharashtra. It is the first tri-service academy in the world.Called to action since the academy was established. The alumni include 3 Param Vir Chakra recipients and 12 Ashoka Chakra recipients. National Defence Academy has produced 27 service Chiefs Of Staff till date. Current Chiefs Of Staff of the Army, the Navy and the Air Force are all NDA alumni.