Diplomatic Relations with the Republic of the Union of Myanmar established.

Diplomatic Relations with the Kingdom of Sweden established on 18 November 1949.

The Colombo Commonwealth Conference on Foreign Affairs held in January 1950, conceives of  “The Colombo Plan” (The Colombo Plan for Cooperative Economic Development in South and Southeast Asia), as a forum to cooperate on socio-economic development.

Diplomatic Relations with the Republic of Indonesia established.

Diplomatic Relations with the Kingdom of Norway established in October 1950

present day High Commission in Islamabad, opened on 22 February 1950.

The Colombo Plan launched on 1st July 1951.

In 1977, after adopted a new constitution, its name was changed to “The Colombo Plan for Cooperative Economic and Social Development in Asia and the Pacific” to reflect the expanded composition of its enhanced membership and the scope of its activities, from its original 7 members.

The adoption of the Free Health Policy, comprising system of grass-root level workers including Public Health Midwives and Public Health Inspectors; National and Base hospitals around the country has enabled Sri Lanka to achieve the highest social development indicators in the region and most parts of the world.

Diplomatic Relations with Japan established.

Diplomatic Relations with the Italian Republic established.