As UPA declared incumbent Hamid Ansari its candidate for the vice- presidential poll, a move is afoot in opposition camp to field JD(U) president Sharad Yadav to ensure a contest.
Sources say a few leaders from BJP as well as from some other opposition parties have already approached Yadav in this regard as there is a view that he can muster the support of other parties.
Yadav was a key force behind organising two Bharat bandhs in 2012 and 2010 on the petrol price hike which saw parties from both Left and Right agitating on the issue the same day.
JD(U) had been maintaining earlier that the vice-presidential election could be a different ball game from the Presidential election and this time, the opposition would be united in whatever decision is taken.
NDA allies JD(U) and Shiv Sena have drifted from BJP and supported UPA Presidential poll candidate Pranab Mukherjee.
The names of Akali Dal chief Prakash Singh Badal and BJP leader Jaswant Singh had earlier done the rounds as opposition nominee for the vice-presidential election.
"Much will also depend on what decision Mamata Banerjee and Mulayam Singh Yadav takes," an opposition leader had said hours before Asnari's candidature was announced. Since then, SP has backed Ansari.
A senior opposition leader, however, felt that even without Trinamool, UPA has a "clear majority" for the vice-presidential election and the opposition putting up a candidate makes "no sense" unless something unexpected happens.
The opposition is keenly watching the next step of TMC chief Mamata Banerjee who has so far not committed her support to UPA on Presidential election.
Even after today's meeting where Ansari's name for vice-president was announced by UPA, Trinamool Congress representative and Railway Minister Mukul Roy proposed two other names.
"As Ansari's name was proposed by Congress, we said we will take a decision after consulting our leadership," he told reporters," Roy said.