On December 10, 2019 the Civic Chamber of the Russian Federation hosted the international conference "From Inequality to Justice: World Experience and Solutions for Russia". Ambassador of Sri Lanka to Russia H.E. Dr. Dayan Jayatilleka accompanied by Madame Sanja Jayatilleka attended the Conference at the invitation of Sergey Ordzhonikidze, Secretary of the Civic Chamber of Russia and Chairman of the Russian Public Council of International Cooperation and Public Diplomacy.

On December 9, 2019 Ambassador of Sri Lanka to Russia H. E. Dr. Dayan Jayatilleka and Madame Sanja Jayatilleka attended a concert, performed by the Quintet of Mr. Igor Butman, internationally known as Russia's number one jazz personality and a virtuoso saxophonist. In June 2000, he performed in the Kremlin for President of Russia Vladimir Putin and the then President of the USA Bill Clinton during the latter's visit to Russia. President Clinton, himself a saxophonist, called Mr. Igor Butman "my favourite saxophonist anywhere in the world". In 2011 the musician was awarded a rank of People's Artist of Russian Federation for outstanding services to the Russian music by the decree of the then President of Russia Dmitry Medvedev.

On December 6, 2019 Ambassador of Sri Lanka to Russia H.E. Dr. Dayan Jayatilleka and Madame Sanja Jayatilleka attended the presentation of the book "Russia" (Polity Press, 2019) by Dr. Dmitry Trenin, Director of the Carnegie Moscow Center at the invitation of Ambassador of Mexico to the Russian Federation H.E. Norma Bertha Pensado-Moreno. The discussion took place at the Embassy of Mexico in Moscow.

On December 4, 2019, H. E. Dr. Dayan Jayatilleka, visited the Higher School of Economics to give what could be his last lecture on the foreign relations and world politics in his capacity as the Ambassador Extraordinary and Plenipotentiary of the Democratic Socialist Republic of Sri Lanka. During his tenure in Russia, Dr. Dayan Jayatilleka delivered lectures at the most prominent and leading Russian educational institutions, including the well-known Moscow State University, Moscow State Institute of International Relations (MGIMO-University), famous Peoples' Friendship University (formerly known as the University of Patrice Lumumba), the Higher School of Economics, the Academy of General Staff of the Armed Forces of the Russian Federation, and others, participated in a number of very important and representative conferences to discuss the most pressing issues of international affairs and peace and stability in the world.

On December 2, Ambassador of Sri Lanka to Russia H.E. Dr. Dayan Jayatilleka accompanied by Madame Sanja Jayatilleka attended a meeting on 'US-Russia Relations: the quest for stability'. The discussion was held at Trialogue Club International. The meeting was co-organized by the Trialogue Club, PIR Center and the Institute of Contemporary International Studies of the Diplomatic Academy of the Russian Foreign Ministry.

On December 1, 2019 H. E. Dr. Dayan Jayatilleka, Ambassador of Sri Lanka to Russia, and Madame Sanja Jayatilleka attended an annual New Year reception, hosted for Heads of Foreign Diplomatic Missions, accredited to the Russian Federation, at the invitation of Hon. Sergey Lavrov, Minister of Foreign Affairs of Russia.