Which political party does veteran politician Lalduhoma belong to, who recently took the oath as the Chief Minister of Mizoram?

Veteran politician and Zoram People's Movement (ZPM) leader Lalduhoma sworn in as the Chief Minister of Mizoram at Raj Bhawan in Aizawl. Governor Dr Hari Babu Kambhampati administered the oath to Mr Lalduhoma. The 74-year-old Lalduhoma joined politics in 1984 when he was elected as Member of Parliament (Lok Sabha) on Congress ticket. He has walked the political corridor for almost 40 years before assuming the Chief Ministership. In this year's elections, he led the Zoram People's Movement (ZPM) to a decisive victory bagging as many as 27 seats in the 40-member House. The ruling Mizo National Front (MNF) was reduced to 10 seats while the BJP got 2 seats.