This gave him more time to master the Tamil language in which he soon showed great proficiency.Because of his boldness in defending the correctness of his convictions, he was fondly called Dhairiyanathar (The Fearless Guru).

He died at Ambalakaadu in Thrissur, Kingdom of Cochin (now a part of the state of Kerala), and is buried at St. Francis Xavier's Church, Sampaloor, where his tomb can be seen.

Robert Caldwell, one of the eminent Tamil linguists and historians, in his book 'A Political and General History of Tinnevelly (Tirunelveli) in the Presidency of Madras: From the Earliest Period to the Cession to the English Government in AD 1801' opines that, based on the writings of his biographer and the letters written to Europe at the same time, "It is certain from authentic records that Beschi was "Rector" of Manapar (present Manapad) in 1744 and that he died there in 1746.

It is very probable that Manapar was the first place in the Tamil country where Beschi resided after he left Goa, in consequence of which he might naturally wish to end his days there.

"[7] He, in the same book (page 243) further states that his body was laid in rest in the oldest church of Manapad which has been now completely buried in the sand.

This Latin work was an eye opener for European intellectuals, enabling them to discover truth and beauty in Tamil literature.

[10][8][11][12][13] His biggest poetical work is the Thembavani (தேம்பாவணி - The Unfading Garland - an ornament of poems as sweet as honey), 3615 stanzas long on salvation history and the life of Saint Joseph.

It was presented for ratification as a classic in the Academy of Poets and received their approval and the poet was given the title Veeramanunivar (The Courageous Ascetic) He also wrote a prabandham (a minor literature) called Kaavalur Kalambagam (காவலூர் கலம்பகம்), a grammatical treatise called Thonnool (தொன்னூல்), a guide book for catechists with the title Vedhiyar Ozukkam (வேதியர் ஒழுக்கம்), and Paramarthaguruvin Kadhai (பரமார்த்த குருவின் கதை - The Adventures of Guru Paramartha), a satirical piece on a naive religious teacher and his equally obtuse disciples.