Theresa's Church lies on the Main Road in Mahe. It is the most famous Christian Church in Malabar. The Church was built during French reign and it stands testimony to the legacy of French rule.
The Church festival is celebrated from 5th to 22nd October every year. All residents of Mahe irrespective of religion or caste take part in the festivities.
People from all over Kerala and neighbouring districts of Karnataka come and visit the church during this festival.