John de Britto was the scion of a powerful aristocratic Portuguese family; his father, Salvador de Britto Pereira, died while serving as Viceroy of the Portuguese colony of Brazil. He joined the Jesuits in 1662, studying at the famous University of Coimbra. He travelled to the missions of Madurai, in Southern India, present-day Tamil Nadu, in 1673 and preached the Christian religion in the region of the Maravar country. He renamed himself Arul Anandar (அருளானந்தர்) in Tamil. The ruler of the Maravar country imprisoned him in 1684. Having been expelled, he returned to Lisbon in 1687 and worked as a missions procurator. King Pedro II wanted him to stay, but in 1690 he returned to the Maravar country with 24 new missionaries.