Akpabio revealed this to the House of Representatives Committee investigating financial mismanagement in the NDDC on Monday.
The minister also said the ex-managing director had no exemption letter.
He also noted that the Nunieh was sacked due to insubordination among other reasons.
Responding to the question on the issues between himself and Nunieh, the minister said, “The former Managing Director of the NDDC was relieved of her appointment when I received a letter from the then Chief of Staff (may his soul rest in peace) that she did not possess the requisite qualifications to be there.
“For instance, we have written twice to the National Youth Service Corps and twice they have insisted that she never served and that she does not have an NYSC certificate or an exception.”