Christianity in the state of Tamil Nadu, India is the second largest religion in the state. According to tradition, St. Thomas, one of the twelve apostles, landed in Malabar Coast in AD 52. In the colonial age many Portuguese, Dutch, British and Italian Christians came to Tamil Nadu. Priests accompanied them not only to minister the colonisers but also to spread the Christian faith among the non-Christians in Tamil Nadu. Currently, Christians are a minority community comprising 6% of the total population. Christians are mainly concentrated in the southern districts of Tamil Nadu - Kanyakumari, Thoothukudi and Tirunelveli.

Thoothukudi District is one of the 38 districts of Tamil Nadu state in southern India. The district was formed by bifurcation of Tirunelveli district on 20 October 1986. Thoothukudi is the district headquarters and largest city of the district. The district is known for fishing as well as pearl cultivation, with an abundance of pearls being found in the seas offshore. Thoothukudi district has many historical sites such as Adichanallur and the ancient trade port of Korkai.