The Archdiocese of Kottayam was erected exclusively for the Southist (Knanaya) Catholic in 1911. The knanaya community traces its origin from a group of Jewish Christian emigrants from Southern Mesopotamia to the South Indian port of Cranganore in A.D 345.They led faithful life and built churches and with that schools for the well being of their descendants. As the result of their insightful thinking, we have nine Higher Secondary Schools, sixteen High Schools, fifteen U.P. Schools and thirty six L.P. Schools in aided sector. Archbishop Mar Mathew Moolakkatt is the Corporate Manager.

Teachers Guild Kottayam is a diocesan wing of Kerala Catholic Teachers Guild working under K.C.B.C.