The International Day of South-South Cooperation was observed annually on _______ date ?

a) September 10
b) September 12
c) September 14
d) None of these

United Nations(UN) International Day of South-South Cooperation Day or United Nations Day of South-South Cooperation is annually observed on 12th September since 2011 to create and spread awareness on the social, economic and political developments made by the regions and countries in the south and to highlight the efforts of UN on the technical cooperation among the south countries (developing countries).