Malayatoor Church is situated atop the 609 m high Malayatoor Hill. The church is dedicated to St. Thomas, who is believed to have prayed at this shrine. One of the most important Christian pilgrim centres in Kerala. According to a local belief St. Thomas is regarded as having established about seven and a half churches in Kerala, half denoting a smaller church. These seven churches were established at Kodungallur, Palayur, Paravur, Kokomangalam, Niranam, Chayal, and Kollam.
The Malayattoor Church and the Tiruvamcode Church in the Kanyakumari area of Tamilnadu are considered to be the half church. But some believe that the Malayattoor Church is one of the major churches built by St. Thomas and they argue that the churches at Kokomanagalam and Paravur must be regarded as half ones. At Malayatoor, the first Sunday after Easter is careful to be a very significant day. Pilgrims, chanting the name of the Apostle ('Ponninkurisumala Muthappa'), climb Kurisumudi, the steep hill to trip the holy shrine.