Bihar JD (U) president Vashishtha Narayan has said that the move was necessary due to Yadav's recent actions.
Differences between Bihar Chief Minister Nitish Kumar and Yadav surfaced after the former parted ways with Lalu Prasad-led Rashtriya Janata Dal and formed a new government with the support of the Bharatiya Janata Party in Bihar last month. BJP leader S Prakash said, "There is a vertical split now in JD (U) over the alliance with the BJP".
On Nitish's claim that the party is not recognized by Election Commission outside Bihar, Srivastava told PTI, "We will not leave the party". "If you are protesting, appealing against Nitish Kumar, he (Sharad Yadav) should resign from his Rajya Sabha post".
Confirming about the formal invite, Shah on Saturday tweeted, "I met JD (U) president Nitish Kumar at my residence yesterday".
Meanwhile, Ansari said the Sharad-led faction is the "real JD-U" and there was no question of leaving the party. "He has just been replaced with RCP Singh [as party leader in the Rajya Sabha]".
A delegation of party's Rajya Sabha and Lok Sabha members submitted a letter to vice president Venkaiah Naidu declaring Ramchandra Prasad Singh the party's new leader in the Rajya Sabha.
He said it was the people who had made the Grand Alliance of RJD, JD-U and Congress in the 2015 Bihar Assembly polls and given their mandate to rule for five years.
The development comes a day after the Bihar Chief Minister had a meeting with Prime Minister Narendra Modi and Shah in the national capital on Friday. Leading the charge has been his younger son Tejashwi Yadav, who was Deputy Chief Minister in the previous version of the Nitish Kumar government.
Speculation swirled over his remarks that the party could suspend him.
Ansari said that everyone, be it opposition parties, social leaders or anyone with human values, should unite against the "divisive forces" (BJP and RSS).
He said, "As far as Yadav talking to Shahabuddin and Nitish talking to Anant Singh goes, Singh was not an inmate of a jail and was Nitish's MLA".
He said that they will now decide whether to attend the JD-U's National Council meeting on August 19.