"Party's central observers - Union Minister M Venkaiah Naidu and national general secretary Bhupendra Yadav - will be present at the meeting on Saturday at 5 PM," BJP's general secretary in UP, where the party won a three-fourth majority, Vijay Bahadur Pathak told PTI in Lucknow.
Asked specifically as to whether there was any likelihood of an election for the post of the leader of the Legislature Party, Pathak avoided a direct reply, saying, "I can't say."
Singh, a former UP chief minister, is probably the tallest BJP leader in the state, while Sinha, an upper caste Bhumihar, too has considerable administrative experience. However, their choice could antagonise lower caste voters.
Maurya, who had helped consolidate non-Yadav OBC votes in the party's favour, is said to be in the good books of BJP chief Amit Shah.
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Another probable is Union Minister Mahesh Sharma, who has strong links with RSS.
The BJP scored a massive victory in the recently held Assembly elections winning 57 of the 70 seats.
The legislature party meeting will be held at 3 PM in the presence of the central observers and party incharge of Uttarakhand affairs Shyam Jaju, Pradesh BJP president Ajay Bhatt said.
"All the newly elected party MLAs have been asked to be in Dehradun tomorrow for the meeting and the day after when the new chief minister is to be sworn in," Bhatt said.
"The factor working in favour of Pant is his long association with the organisation as well as his ministerial and legislative experience," a senior party leader requesting anonymity said.
Trivendra Singh Rawat, who has been elected from Doiwala, also continues to be in the race for the top office due to his strong RSS roots and long experience in ministerial positions.
Trivendra who is incharge of party affairs in Jharkhand and is also credited for guiding the party to victory there is also known for his proximity with the party's central leaders, a fact which seems to strengthen his chances.