United Nations Day for South-South Cooperation is observed on which date to commemorate the adoption in 1978 of the Buenos Aires Plan of Action for Promoting and Implementing Technical Cooperation among Developing Countries?

Answer :- September 12

To mark the importance of South-South Cooperation, the General Assembly decided to observe United Nations Day for South-South Cooperation on 12 September every year, commemorating the adoption in 1978 of the Buenos Aires Plan of Action for Promoting and Implementing Technical Cooperation among Developing Countries.

Theme for 2020 is “Pathways toward the SDGs through South-South solidarity beyond COVID-19.”