Kantheesangal and St. Thomas Christians
In c. AD 825 two Syrian Bishops, Mar Sabor and Mar Aphroth arrived in Kerala. These two saintly bishops established many churches, which were later consecrated after these two bishops - Kantheesangal. Later, during the Synod of Diamper, these churches were reconsecrated either to all saints or to Sts. Gervasius and Protasius, based on the Roman Catholic Portuguese presumption that these two Syrian bishops and all Syrian churches were heretic.