On January 5, 2005, Rev. Dr. Joseph Konnathu, then-Principal of Mar Theophilus College, Trivandrum, was appointed Titular Bishop of Sicilibbensis and Auxiliary Bishop of the Major Archieparchy of Trivandrum with the special mission as Apostolic Visitator for the Syro-Malankara Catholic faithful in North America and Europe. Msgr. Joseph Konnathu was ordained Bishop with the name Joseph Mar Thomas on February 19, 2005, by His Beatitude Moran Mor Cyril Baselios Catholicos, the Major Archbishop of the Syro-Malankara Catholic Major Archiepiscopal Church. On January 25, 2010 Most Rev. Dr. Joseph Mar Thomas was transferred to the Eparchy of Bathery in India as its Bishop.