Mar Joseph Pastor belongs to the parish of Aranattukara of this Archeparchy. He was born on 19 March 1930. On 17 May 1960 he was ordained priest in the Dharmaram Chapel by Joseph Cardinal Parekkattil. His first assignment after ordination was as Assistant Director of Social Apostolate in the present Archdiocese of Trichur. He received the Episcopal ordination from Mar Joseph Kundukulam and took charge of the Eparchy of Sagar on the 22 February 1987.
He served the Sagar diocese for nineteen years and he retired on 2nd Feb, 2006. After his retirement he went to live in Sagar Mission Home in Kuttur.