The decision was taken during parliamentary board meeting to finalise names for Rajya Sabha and Vidhan Parishad nomination.
Once close to Mulayam, Amar Singh was ousted from the party ahead of the 2009 Lok Sabha elections. He floated his own party after his ouster from the SP and contested the Uttar Pradesh legislative assembly elections against it. Then he joined Rashtriya Lok Dal (RLD) and contested the Lok Sabha polls without luck.
Talks of Amar’s return to the party or getting a Rajya Sabha membership became stronger since Friday when Mulayam re-inducted Beni Prasad Verma into the party. Beni was a close associated of Mulayam but had joined the Congress.
His association with Mulayam, chief minister Akhilesh and senior minister Shivpal Yadav got a boost again after Akhilesh Yadav government came to power in the state.
Biennial elections to 11 Rajya Sabha and 13 Legislative Council seats in UP are due in June.