Born on May 18, 1958 in the village of Dzoragyugh in the Martouni region.
in 1989 mr. Grigoryan received his degree in economics and technical mechanics from Kiev Agricultural Academy.
From 1976-1977 he worked in the Dzoragyugh collective farm.
From 1977-1979 he served in the Soviet Army.
From 1982-1985 and then again from 1989-1992 he worked as a deputy director of Cherkasi Seed Research Farm in Ukraine. The next four years he served as the director of Cherkasi Constructor Ltd.
From 1996-1999 he was the head of Dzoraghyugh Community of Gegharkounik region.
From 1999-2003 he was the deputy of the Regional Governor of Gegharkounik.
On May 25, 2003 he was elected to the NA from electoral district # 31, and he serves on the NA Standing Committee on Financial-Credit, Budgetary and Economic Affairs. He is a member of RPA Faction.
He is a member of the Republican Party of Armenia, member of RPA board.
Married and has four children.