St. John De Britto Church is a Catholic parish located directly in Thirumanur, Ariyalur District. The church's official website states that the parish was established in 1990, and that it functions as a spiritual and community centre with worship, youth activities, value education and social programmes. The parish also has several substations in nearby localities including Gandhi Nagar, Vilangudi, Anaikudi, Karaipakam, Villiyanallur, Karaivetti, Thiruvenganur, Thirupeyar and Senapathy.
