Thumpoly is a coastal town in Alappuzha district, India, and is a well-known Christian Marian pilgrimage shrine of Kerala.

Although this church is known in the name of Saint Thomas, it is the Mother of God, Our lady of Immaculate Conception (Amalolbhava Matha) and her feast that made Thumpoly famous.

For the first time (Between 1550 and 1600) in India, the statue of the Mother of God Holy Virgin Mary was enshrined in Thumpoly Church.

A few marthoma Christians migrated to Thumpoly in the 06th century AD and established a small thatched church called Thomapally there.

But all of them were attacked in war, fire and so on and due to financial difficulties it was not possible to build a big church like it is now.

But the people saw that the holy statue of Mother Thumpoly was more bright and safe without being exposed to fire.

The Confraternity feast of Immaculate Conception at Thumpoly Church is a very historic and famous festival.

Thumpoly Our Lady Of Immaculate Conception feast celebrated every year from November 27 to December 15.

[1] The Annual Confraternity feast of Our Lady Of Immaculate Conception at Thumpoly Church is a very historical and famous festival.

Until a century and a half ago, the month of August was celebrated as the feast of the Assumption of Mary in Thumpoly Church.

The devotional experience of worshiping the divine form of the Mother of God with flowers, perfumes and incense is unique to the festival days.

The Our Lady of Immaculate Conception feast at Thumpoly Church is a perunnal celebration that lasts for 18 days.

The perunnal Predakshinam (Feast Procession), which carries the historical Statue of Mother Mary, which is taken out only once a year, takes about two hours to return to enter the church.

Parish Feast of the Parish arbitrator Saint Thomas the Apostle (Thoma sleeha) and Saint Peter the Apostle (Patros sleeha) are celebrated on the Sunday after July 3rd(July 1st or 2nd Week).

This is one of the biggest Marian festival (feast) and Pilgrimage Church seen in Kerala and Alappuzha District Thumpoly is known for the birth of scholar and current head of Villyarvattom dynasty Sri Jijo Raju.