56-year-old Mehbooba was elected as the leader of PDP Legislature Party at a meeting of the senior leaders, which included MPs, MLAs and MLCs, at her residence here.
PDP will now need a letter of support from BJP -- seen as a mere formality -- to become the first woman chief minister of the state.
Baig said the "dye has been cast" and formation of a
"Now the only thing that is to be done is to meet the Governor. Mehbooba Mufti and the leader of BJP have to fix a date for swearing in (ceremony)," he said.
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Asked about the conditions laid by PDP for government formation, Baig said, "No, no...The Agenda of the Alliance is very comprehensive. There is no need to put any new issue."
The Lok Sabha member from Baramulla said BJP General Secretary Ram Madhav was right in saying that there were no new conditions for government formation.
"Nothing can be added to it and nothing can be removed from it," he added.
The fast track developments since Tuesday -- when Mehbooba met the Prime Minister -- have put an end to the nearly three-month-long stalemate between PDP and BJP which surfaced following the death of Sayeed, on January 7, this year.
The state was put under Governor's Rule and the Assembly was kept in suspended animation on January 8.
Although it is not clear if Mehbooba got the desired assurances from the Prime Minister, the steps towards government formation moved faster as the PDP chief said she was satisfied after meeting the PM.
Earlier, addressing the party legislators, Mehbooba thanked them for all the support during the past three months.
"Mehbooba Mufti is nothing without your support. You are my strength...I thank you for your support over the last three months," she said.