 Sainik School, Amaravathi Nagar, was started in 16 Jul 1962 as part of the Sainik School society.It was called Sainik School, Madras (SSM) until 1975.Sainik School, Amaravathinagar, was formed with the objective of training cadets to join the National Defence Academy - NDA (NDA provides combined training for the cadets entering into all the three forces in India).