Bhengu has been serving as Sassa regional manager in KwaZulu-Natal.
The announcement follows after Dlamini and the former CEO, Thokozani Magwaza, mutually agreed to end his contract of employment.
Magwaza’s exit came just hours after standing committee on public accounts (Scopa) chairperson Themba Godi condemned alleged death threats against Magwaza, labelling them “brazen lawlessness”.