The Chengannur – Mavelikkara Diocese has evolved over a period since 1994 going through different phases of expansion and consolidation. The latest one was on the 1st of April 2005 when the Mavelikkara and Karthikapally Centres were added to the already existing Thumpamon Diocese. Now the Chengannur – Mavelikkara Diocese includes Chengannur, Edyaranmula, Ummayattukkara, Elanthoor and Thumpamon Centres.