NDA 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 academy for further pre-commission training. The NDA is located in Khadakwasla, Pune, Maharashtra. It is the first tri-service academy in the world. Applicants to the NDA are selected via a written exam conducted by the UPSC in 1995, followed by extensive interviews by the Services Selection Board covering general aptitude, psychological testing, team skills as well as physical and social skills, along with medical tests. Incoming classes are accepted twice a year for semesters starting in July and January. Cadets who are accepted and successfully complete the program are sent to their respective training academies for one year of training before granting of commission: army cadets go to Indian Military Academy (IMA) at Dehradun, air force cadets to Air Force Academy (AFA) at Dundigal, Hyderabad, and naval cadets to Indian Naval Academy (INA) at Ezhimala, Kerala. TES Indian Army provides opportunity to the candidates aspiring to become an officer in Engineering Core of Army twice a year through Indian Army Technical Entry Scheme (Army TES). TES is open for all such candidates who have qualified 12th standard in Science stream. The selected candidates are admitted to engineering course by the Army and they are appointed directly on the Rank of Lieutenant after the successful completion of the course. ACC The Army Cadet College Wing trains soldiers from the regular army, navy and air force for commission as officers in the Indian Army. It has 3 companies. The ACC feeds into the Indian Military Academy. The selection for admission to ACC is based on a written test and subsequent selection via Services Selection Board. TA "The Indian Territorial Army (TA) is a second line of defence after the Regular Indian Army. The Territorial Army initially had various types of units such as armoured regiments, infantry battalions, air defence, medical regiments, engineers field park companies, signal regiments, Electrical and Mechanical Engineers (EME) workshops, coast batteries, Army Service Corps GT Coy, ASC Compo Pl, and AMC field ambulances. By 1972, these units were either disbanded or converted to Regular Army units with the exception of infantry battalions. The present role of the Territorial Army is to relieve the Regular Army from static duties and assist civil administration in dealing with natural calamities and maintenance of essential services in situations where life of the communities is affected or the security of the country is threatened, and to provide units for the Regular Army as and when required. The Territorial Army has a strength of approximately 40,000 first-line troops (and 160,000 second line troops) comprising departmental Territorial Army units such as railway, IOC, ONGC, telecommunication and General Hospital, and the non-departmental Territorial Army units of infantry battalions and ecological battalions affiliated to various infantry regiments."