His Grace was born on 15 August 1949 to Mr TO Cherian Mrs Kunjelyamma Cherian of Aruvidan Pallikal Family, Kallupara.

On 16 August 1993, HH Baselios Mar Thoma Mathews II consecrated him as Episcopa and named as Jacob Mar Irenios. In August 1995, he was given charge of the Malabar Diocese as the Assistant Metropolitan. When Zacharia Mar Dionysius departed for the eternal life, His Grace was given the charge of Madras Diocese.

His Grace has served the church in different capacities as the President of Orthodox Youth Movement and President of the Orthodox Christian Bala Samajam.His Grace is presently given the charge of Kochi Diocese.

*Reference – http://mosc.in