In 1969 Attygalle, who had been appointed as a special security advisor to the Ministry of External Affairs and Defence in July 1967, prepared a report on the potential threat of the communist Janatha Vimukthi Peramuna (JVP) which was presented to the Prime Minister, Dudley Senanayake, for consideration. It is felt that the government's subsequent in actions against the JVP precipitated the JVP insurrection in 1971.