On December 19, 2018 Ambassador Dr. Dayan Jayatilleka and Madame Sanja Jayatilleka went to the Bolshoi Theatre at the invitation of the Ministry of Foreign Affairs, which customarily hosts Ambassadors and their wives for an annual festive seasonal reception at the Bolshoi. This year it was for the ballet performance of Don Quixote.

On 19 December 2018, The Peoples' Friendship University of Russia (RUDN) hosted the traditional Asian Cultural Week, attracting hundreds of Asian students, including those of Sri Lanka, at the University premises.

On December 18, H.E. Dr. Dayan Jayatilleka, Ambassador of Sri Lanka to the Russian Federation and Madame Sanja Jayatilleka paid a courtesy call on His Grace Celestino Migliore, Archbishop of the Roman Catholic Church who was appointed by Pope Francis as the Apostolic Nuncio to Russia. Celestino Migliore is a Titular Archbishop of Canosa and has spent most of his career in the diplomatic service of the Holy See in the UN (New York) USA, Egypt, France and Poland.