Currently he is prelate and archbishop of the Armenian Diocese of Tehran located at Saint Sarkis Cathedral, which is under the jurisdiction of the Holy See of Cilicia.

From 1968 to 1970 he studied Arabic literature and Islamic philosophy at Saint Joseph University in Beirut.

[1] In 1978 he became member of the Middle East Council of Churches and was Director General of Sunday schools in Lebanon from 1978 to 1998, where he was responsible for the spiritual upbringing of the new generation.

[1] On 4 April 2016, he held a service at Saint Sarkis Cathedral of Tehran in remembrance of the Armenian soldiers fallen during the 2016 Nagorno-Karabakh clashes.

[6] In an interview with the Armenian-language daily Alik of Tehran in November 2016 Sargsyan expressed his concern over extremist, Islamist movements in the Middle East threatening the life of Christians but he pointed out that, by contrast, in Islamic Republic of Iran it is possible for Armenian Christians to live in peace.