The 122 party MLAs will meet at 4 PM, party sources said here today.
Union Home Minister Rajnath Singh and senior party leader J P Nadda, who have been nominated as central observers, will oversee the election process, the sources said.
The election of the Legislature Party leader will mark a step towards formation of the government in the state where BJP fell short of majority by 23 seats in the 288-member Assembly.
However, BJP sources were tight-lipped about the likelihood of an alliance with the estranged partner, saying nothing concrete has emerged yet.
More From This Section
Asked if central observers plan to meet Sena leaders, a senior party leader said there is "nothing like this as of now".
The MLAs will choose their leader irrespective of the outcome of talks with Sena, an indication that BJP was not averse to forming a minority government, the leader said.
Sena has of late softened its stand against BJP with an editorial in its mouthpiece Saamna today saying that the party was ready to back any BJP CM.
State party president Devendra Fadnavis is said to be frontrunner for the post of the Chief Minister but some other names, including those of Union minister Nitin Gadkari, have been doing the rounds.