By 1825, it appears, he was introduced to Christian literature, when his brother Jagannadha Chowdhari procured him religious tracts written by probably by William Carey, one of the Serampore Trio.
He even went to Vizagapatnam (also known as Vizag) and met Roman Catholic priest and tried to meet Rev James Dawson of London Missionary Society, already operating over there.
He was directed to Helen Knott, who gave Gospel of Luke and two tracts—In May 1833, he went to Vizagapatnam to meet missionaries, then-overseen by Major Brett.
[2][3][7] Initially in 1834, he worked as an assistant missionary under Major Brett of London Missionary Society at Madras; accordingly, he made numerous trips to Oriya speaking districts and Telugu speaking districts of then-Madras Presidency, including regions of Andhra and Bellary of present Karnataka, to preach the "Word of God,"(gospel) and to distribute Christian literature, including the evangelical literature written by him.
He worked closely with Rev William Dawson of London Missionary Society (an accomplished hymn writer in Telugu).
In 1861, he toured several Telugu-speaking areas for gospel preaching, namely, Anakapalli, Yellamanchili, Tuni, Pithapur, Samalkot, Peddapuram, Cocanada (present Kakinada), and several other Andhra regions.
In 1872, Anthravady published a poetical work by Purushottam entitled The Gospel Trumpet—one thousand copies were printed and distributed in Telugu speaking districts.
[2][3][4] He was also a good poet and renowned hymn-writer; he composed one hundred and thirty hymns, authored books, seven Christian tracts, and published many pamphlets with teachings of Jesus Christ.