"Nobili appeared in Madura clad in the saffron robes of a Sadhu with sandal paste on his forehead and the sacred thread on his body from which hung a cross and took his abode in the Brahmin quarters. He thus attracted a large number of people. He gave out that he was a Brahmin from Rome. He showed documentary evidence to prove that he belonged to a clan of the parent stock that had migrated from ancient Aryavart and assured the members of the high castes that by becoming a Christian one did not renounce one’s caste, nobility or usage. (Pages 65-70 Christians and Christianity in India and Pakistan). He learnt Tamil, Telugu and Sanskrit, and took up the Brahman style of living. He wrote in Sanskrit a Christian Sandhyavandanam for Brahmin converts. He declared that he was bringing a message which had been taught in India by Indian ascetics of yore and that he was only restoring to Hindus one of their lost sacred books, namely the 5th Veda, called Yeshurveda. It passed for a genuine work until the Protestant Missionaries exposed the fraud about the year 1840. (History of Missions, Richter, Page 57). In five years, from 1607 to 1611, he baptised 87 Brahmins. These conversions, then so marvellous, drew upon De Nobili the eyes of friend and foe alike. A big controversy raged among the Roman Catholic missionaries the world over for a considerable length of time. Much of the opposition could be explained by wounded pride on the Portuguese side. In 1623 Pope Gregory XV gave a bull in favour of De Nobili, declaring thus: We allow the present and future converts to wear the (Brahmin) thread and the tuft of hair as distinctive marks of race, social rank and office, to use sandal wood as ornament and to take ablutions as a matter of hygiene. This Brahman Sanyasi of the ‘Roman Gotra’, Father De Nobili, worked for 40 years and died at the ripe age of 89 in 1656. It is said that he had converted about a lakh of persons but they all melted away after his death."
January 1, 1970
https://en.wikiquote.org/wiki/Christian_Ashram_Movement