Dalit autobiography is a unique genre that opened new doors in subaltern studies. Among Dalit autobiographies, Bama’s Karukku is a milestone while most of the Dalit autobiographies explored the phenomena of untouchability and casteism that were prevalent within Hinduism. Bama’s Karukku exposed the same issues that were present in Christianity too. Bama is the penname of Faustina Mary Fathima Rani. Bama’s presentation of casteism within Christianity in one of its kind because she lead a life as a nun for a few years. Hence she is able to present the readers with casteism among the lay people as well as clergy. Further she reflects on God, religion and the role of these two entities in caste based societies. This paper aims to explore the depiction of that trinity, God, Church and Christianity in Karukku.