Ahmad Zahid, who is also the home minister, replaced Tan Sri Muhyiddin Yassin in the cabinet reshuffle announced on July 28.
Shortly after receiving the appointment letter, Ahmad Zahid, accompanied by chief secretary to the government, Tan Sri Dr Ali Hamsa, proceeded to the DPM's office to begin duty on his first day in office.
He punched the attendance card at his new office at 8.30am.
Zahid (left) receiving his appointment letter from Najib at Perdana Putra this morning. - BERNAMApic
Ahmad Zahid, who looked cheerful, later joined the prayers led by Ustaz Azhar Tuarno, the religious officer in the Prime Minister's Department.
Earlier, Ahmad Zahid participated in the monthly assembly of the Prime Minister's Department (JPM) for the first time as the deputy prime minister.
The assembly was also joined by minister in the prime minister's department Datuk Seri Azalina Othman Said and deputy minister in the JPM Senator Datuk Dr Asyraf Wajdi Dusuki who were also recently appointed to their respective post.