In October 2000, a Marian Grotto was built in the church premises. It is one of the dream projects of Rev. Fr. Thomas Panjikaran. This grotto, in the name of the Blessed Virgin Mary is so similar to the one in Lourdes. It is big in size in the Diocese of Irinjalakkuda. There are many people come over India and other countries to pray to Blessed Virgin Mary which installed in the Marian Grotto. There are many miracle happened in this grotto by the weeping prayer of the people and it still continuing. There are many special prayer services at Grotto in honor of Blessed Virgin Mary especially Eucharistic Procession during the time of September one to eight and Ladeenju and Novena in every Saturday at 6pm. There are many people come over to Marian Grotto at 7 o’clock to recite rosary.
