"Udayveer Singh has been expelled from the party for six years for his undignified and indisciplined behaviour," state party spokesman Ambika Chaudhary said.
The party will not tolerate undignified behaviour and indiscipline. It has reached where it is in 25 years because of discipline, Chaudhary said.
In the four-page letter to the party supremo earlier this week, Udayveer had said, "SP state president Shivpal Yadav and other members of his family have misled you (Mulayam) and hatched a conspiracy against CM Akhilesh, who should be made party national president and given all the powers."
He said he had no regret about the points raised by him in the letter.
"Those who have used foul language against the party chief are still in the party, but those who are the real well- wishers and wrote letters are being expelled," Singh rued.
Defending expelled youth leaders including MLCs, Udayveer
had in the letter said, "They were expelled on false grounds and it is against social justice."
He had also attacked Shivpal for supporting Mukhtar Ansari's Quami Ekta Dal and making allegations that party leaders of Mainpuri were involved in land grabbing and illegal liquor business.
