Qoma also alleged that Brown had done the Guptas' bidding at Eskom and that Khoza had reported one such incident to him.
Daniels‚ who is on suspension‚ recently told the same inquiry that the Guptas had conspired to delay court proceedings against former Eskom CEO Brian Molefe.
Eskom said the testimony was not an accurate reflection of events.
"There have been several witnesses that have been called to give their testimonies who have clearly represented their own interests at the expense of the organisation and the country at large‚" Khoza said.
"We understand that Eskom will be given an opportunity to make a formal presentation at the Parliamentary Inquiry where it will give an honest‚ transparent and truthful account of events."
Brown has also spoken out against the testimony given before the public enterprises committee.