[4] He was appointed as Minister of National Education on 5 April 1977[5] and returned to the Central Committee in 1979,[4] when Denis Sassou Nguesso, a cousin of Ndinga Oba,[6] became president.
[8] In a September 1986 speech at the United Nations, Ndinga Oba compared apartheid South Africa and Israel to Nazi Germany.
Israel complained to the United States about this speech, and the United States in turn complained to Congo; it reportedly pressured the Congolese government with a warning that US president Ronald Reagan might decline to meet with Sassou Nguesso when the latter visited the US in October 1986.
[13] In 2004, he published a two-volume linguistic study, The Bantu Languages of Congo-Brazzaville: Typological Study of the Languages of Group C20 (Mbosi or Mbochi) (Les langues bantoues du Congo-Brazzaville – Étude typologique des langues du groupe C20 (mbosi ou mbochi)).
[1] Another book by Ndinga Oba, On the Banks of the Alima (Sur les rives de l'Alima), was published in Paris in 2003.
[1][13] His body was returned to Congo-Brazzaville, and after a tribute at the Palace of the Parliament in Brazzaville, he was buried at his family cemetery in Oyo on 27 May 2005.