This research work enumerates the contributions made to Christianity in Tamilnadu, India, by C.J. Beschi (1680-1747), popularly known as ‘Veeramamunivar’, an illustrious Jesuit of the Madurai mission. This work attempts to portray Beschil’s contribution as an itinerant missionary, as a man of literary work and as a theologian. This book presents Beschi as a tireless missionary amount the subalterns and as one of the key founders of Christianity in Tamilnadu. It highlights Beschi’s acquired proficiency in Tamil language leading him to become one of the pioneers of Tamil theology; He expresses the Christian faith effectively and creatively drawing inspiration from Tamil literary sources.