In 1982, he successfully defended his dissertation titled “Armenians in the Middle East according to Georgian itineraries” and received the degree of Candidate of Sciences.

From 2013, till his last days Professor Chobanyan chaired Department of “Eastern Sources and Historiography” at the Institute of Oriental Studies of NAS RA.

In those years under the consistent supervision of Academician Mkrtich Nersisyan, his goal-oriented and hard-working qualities contributed to the prosperity of Patma-Banasirakan Handes, which was very important in Armenian studies, as well as to the process of discovery and publication of ratifications of the Armenian-Russian relations.

With the emergence of internal and external challenges connected with the newly established Republic of Armenia, there was a greater need for impartial and academically devoted researchers like Pavel Chobanyan.

After collecting large number of sources from the archives and libraries of Tbilisi and Moscow, in 1981 he published his research titled “Georgian travel notes and their information about Armenians”.

The skilled historian-medievalist was one of the authors of the four-volume book “History of Neighboring Countries of Armenia”,[6] which was published by the Institute of Oriental Studies of NAS RA.

Demographic and Localization Issues in the context of NKR Security” (2014) are very valuable collective monographs that were published as an appendix of “Armenian Army” military journal in the special editions of “Working Notebooks” under the RA MoD National Defense Research University, where he had been as a project coordinator, academic editor and author of the major articles.

During his academic activity Chobanyan's speech was heard in many international and local conferences, where he covered the most important issues of Source Studies and the history of Transcaucasia.

P. Chobanyan was both member and scientific secretary of the Specialized Council 056 of “Political Science and International Relations” at the National Defense Research University, MoD, RA.