 After the great swearing – Coonen Cross Oath in 1653 it became necessary to appoint a bishop.For this purpose a special chair was made and Mar Thoma I the first bishop of Malankara church was enthroned.This throne, used for the consecration of Mar Thoma I, is in the possession of the Mar Thoma Church and is kept at Tiruvalla, It has been used in the installation of every Mar Thoma Metropolitan, to this day, so that the continuity of the throne of Mar Thoma is ensured.