“You have elected me to various positions in the city and I have never failed you. This will not be the first time,” he said.
He also promised to end the budget impasse to ensure service delivery in the city is not grounded.
Mr Mutura was to be sworn in on Friday last week but the ceremony was postponed after the assigned judge, Justice Jairus Ngaah, arrived past the stipulated time.
The new development follows the confirmation of Sonko’s impeachment by the Senate last week Thursday, paving way for Mr Mutura to take over as acting governor for 60 days since Nairobi has no deputy governor.