[1] Margosyan was born on 23 December 1938 in the Hançepek district of Diyarbakır, Turkey.
Margosyan received his college degree from the Philosophy Department of the Faculty of Letters at Istanbul University.
In 1988 Margosyan received the Eliz Kavukcuyan Literature Award for authors writing in Armenian in Paris, France.
(1995) and Biletimiz İstanbul'a Kesildi (1998) in Turkish and in 1999 published his second book, Dikrisi Aperen in Armenian.
Margosyan continued to write for Evrensel under the column Kirveme Mektuplar, which was published in a 2006 book of the same name.