11 to 14 years. The selection process is rigorous, with a written exam, viva and medical tests. The selected top 55 students will study until class XII (Higher Secondary). Cadet college is a fully residential school. Cadets get four vacations of total 90 days in a year called term break. Administration Central administration Cadet Colleges function under the Ministry of Defence. The Defence Secretary is the chairman of the Cadet College Governing Council while the Adjutant General, Bangladesh Army is the chairman of the Cadet College Governing Body. The Cadet College Section at the Adjutant General's Branch at Army Headquarters directly controls all the Cadet Colleges. College administration The principal of the college may be either a serving military officer of the army rank of Lieutenant Colonel, or navy or air force equivalent, or a senior officer from the Cadet College Service (promoted from the faculty members as per regulation). The vice principal is responsible for academic affairs. A military officer of the rank of major is posted as the adjutant who is the principal's assistant and is responsible for administrative matters. Senior faculty members appointed as a House Master look after the administration of the Cadet Hostel/ Boarding House. All faculty members are attached to a Houses and are called House Tutors. The accounts officer looks after the matters relating to accounts and budget. Cadet administration To build leadership skills and maintain effective cadet administration a set of cadet leaders called Prefects are appointed from the cadets of the most senior class after departure of a batch. They are inaugurated by College Principal, Adjutant and Vice Principal in the college auditorium. The cadet administration works under the supervision of the college administration. According to seniority the appointments are: College Prefect (leads 375 cadets, maintains the overall discipline and works as a bridge between cadets and the administrative board) 3 House Prefects (leads each of the house of 125 cadets) College Games Prefect (in charge of the college games) College Cultural Prefect (in charge of cultural affairs) College Dining Hall and Mosque Prefect (in charge of dining and mosque discipline matters) 3 Assistant House Prefects (assists each of the house prefects) 3 House Games Prefects 3 House Cultural Prefects Junior Prefects (from class XI, to assist the Prefects named above) Academic System Cadets are enrolled in class 7 of Bangladesh National Curriculum and continue their study for six years up