Zoramthanga, who was unanimously appointed as the leader of MNF legislature party in Mizoram, will be sworn-in as the Chief Minister on December 15. MNF spokesperson Lena Jongte said the ceremony will take place at the Raj Bhavan in Aizawl. MNF won 26 seats in the 40-member assembly, bringing down Congress to five seats as compared to 34 in 2013.