After completing his degree and post graduate studies from Sacred Heart College, Thevara and Christ College, Iringalakuda, he joined the Mar Thoma Seminary for Theological education. He became a Deacon in 1978 and subsequently served as parish priest at Jalahali, Palarivattom, Colaba and Staten island, and other parishes. On December 9th 1989 he was consecrated as Episcopa and at present he is in charge of the North America & Europe Diocese.

Mar Coorilos is a man of prayers. Mar Coorilos spearheads the missionary activities of the Diocese of North America and Europe through the initiative of the Mexican Mission and work among Native Americans.