At a distance of 24 Kms from Kottayam, St. Mary's Church located in Kaduthuruthy (on Kottayam - Kochi road) is also called Thazathu Pally.
The Church belongs to the Diocese of Palai and it is one of the most famous traditional Churches in South India. The original structure of the Church is believed to have been built in 1009 AD. The present structure is completed in 2005 and it's the biggest in the Diocese of Palai.
The main festival is called 'Holy Family', celebrated on the first Sunday of the month of Makaram (around mid of January). The festival of St. Mary is celebrated on August 15th and called 'Kallitta Thirunal'.