Prime Minister Narendra Modi and BJP chief Amit Shah will attend the swearing-in of Jairam Thakur as the new Himachal Pradesh Chief Minister here on December 27.
The Chief Ministers of BJP-ruled states will also attend the swearing-in ceremony.
Thakur, a confidant of Union Health Minister JP Nadda and associated with the Rashtriya Swayamsevak Sangh, will take oath as the new Chief Minister along with his Cabinet colleagues at the Ridge in the state capital.
Earlier in the day, newly elected legislators of the Bharatiya Janata Party chose five-time legislator Thakur as their leader.
He along with senior leaders later met Governor Acharya Devvrat to stake claim to form the new State Government.
The BJP wrested power in Himachal from the Congress, winning close to two thirds majority with 44 seats in the 68-member assembly. The Congress won 21 seats, independents two and the Communist Party of India-Marxist one.
Thakur had emerged as a front runner after Dhumal and state party chief Satpal Satti were defeated in the November 9 elections. The poll results were declared on December 18.
Thakur was a Cabinet minister in the BJP government led by Dhumal from 2007 to 2012.
In his first remarks after he was elected the BJP Legislature Party leader, Thakur thanked all party leaders, including Prime Minister Narendra Modi, party chief Amit Shah, Nadda, Dhumal and Shanta Kumar.
"We will try to meet the expectations of the people of Himachal Pradesh. Our dream of a Congress-free Himachal Pradesh has been realised," said he while talking to the mediapersons here.
The BJP took almost a week to decide on the Chief Minister after its chief ministerial candidate Dhumal lost the election. Several names were doing the rounds for the past few days, including those of Nadda, MLA Suresh Bharadwaj, Dhumal and Thakur.