Lalduhoma was sworn in as the chief minister of Mizoram on Friday. Governor Hari Babu Kambhampati administered the oath of office and secrecy to Lalduhoma.
Eleven other ZPM leaders will also take oath as ministers.
The swearing-in ceremony was held at the Raj Bhavan where Mizo National Front leader and outgoing chief minister Zoramthanga was present.
All MNF MLAs, including its legislature party leader Lalchhandama Ralte, attended the event. Former chief minister Lal Thanhawla was also present there.
On Tuesday, the ZPM Legislature Party elected Lalduhoma as its leader and K Sapdanga as the deputy leader.
With a 40-member assembly, Mizoram can have 12 ministers, including the chief minister.