A truly unique celebration awaits at the historic Palayur Church in Thrissur, where the annual festival is dedicated to St. Thomas, the apostle of Christ. Believed to be one of the seven churches established by St. Thomas in 52 C.E., St. Thomas Church in Palayur near Chavakkad has a rich history spanning nearly two millennia.

The annual festival at this historic church lasts for two days, drawing thousands of attendees from various walks of life. The festival features vibrant pageants, orchestras, and spectacular fireworks, mirroring the grandeur of Hindu festivals celebrated in Thrissur. The celebrations are marked by an array of activities that highlight the deep-rooted cultural and spiritual traditions of the region.

The St. Thomas Archdiocesan Shrine, known for its annual Lenten Mahatheerthadanam (great pilgrimage), spans a 30 km route from Thrissur to Palayur, attracting pilgrims from across the state. The festival's significance is heightened by the church's history, with its origins tracing back to the time of St. Thomas' arrival in Kerala.

Fourteen granite statues at the church's entrance depict key events from the apostle's life, while the wooden Jubilee door features carvings based on biblical stories. The Thaliyakulam, a pond within the church premises, is believed to possess healing powers, adding to the site's spiritual allure.

The Palayur Mahatheerthadanam, held during the Lent season, is a highlight of the annual festival. This event, lasting for two days, is noted for its music, pyrotechnics, and pageantry. Interestingly, it shares similarities with Hindu festivals held on the same day in Thrissur, symbolizing the syncretic cultural landscape of Kerala.

The festival is a testament to the continuous Christian presence in Kerala for over nineteen centuries. Established in the first century A.D., Palayur has been a significant site for both spiritual pilgrimage and historical exploration. The church's location near the Arabian Sea and its connection to ancient trade centers like Muziris underscore its historical importance.

During the festival, the church and its surroundings are filled with vibrant activities and rituals. The two-day celebration includes special services, communal prayers, and various cultural performances, creating a festive atmosphere that captivates both devotees and visitors. The festival also features a grand procession, reminiscent of the Lenten Mahatheerthadanam, reflecting the deep-rooted traditions of the Christian community in Kerala.