Deva Matha College maintains a heritage museum which is housed in the annex building of Major Archiepiscopal Marth Mariam Archdeacon Pilgrim Church, Kuravilangad. It has a repertoire of precious and invaluable documents substantiating the eventful history of the church. It showcases precious rare objects of worship and honoured priceless objects and documents highlighting the culture and heritage of the place. The museum was renovated to the present status in 2013 by the then Vicar and College Manager, Rev. Fr. Abraham Kollithanathumalayil.