On August 17, 2019 Ambassador Jayatilleka accompanied by Counsellor Mohamed Anas, and Defence Attache Group Capt Uditha Piyasena, visited the Patriot Congress and Exhibition Centre for the official closing ceremony of the 5th International Army Games 2019 (ARMY 2019).

On August 13, 2019 Ambassador H.E. Doctor Dayan Jayatilleka paid a courtesy call on Maria Zakharova, Director of the Information and Press Department of the Russian Ministry of Foreign Affairs. Maria Zakharova is also a spokeswoman for the MFA officially representing Russia. She is a PhD holder in Historical Sciences, who previously headed the Press Service of Russia's Permanent Mission to the UN in New York City.

On August 9, 2019 Ambassador Jayatilleka paid a visit to the Russian Institute for Strategic Studies (RISS). Established in 1992 by the President of the Russian Federation the Institute has become a major scientific-research and analytical centre with its mission to provide information support to the Administration of the President of the Russian Federation, the Federation Council, the State Duma and the Security Council as well as to Government offices, ministries and departments. Now RISS has more than 10 centers including Centre for Asia and Pacific Region which do analysis and predict trends in political and socio-economic processes at global and regional levels.