Sadhu, who is Lalu's brother-in-law, said that he will contest polls from Saran to challenge candidates of mainstream political parties, who have neglected its development.
Lalu had said he did not care for Sadhu in the fray.
"There will be no impact of Sadhu in fray from Saran. He is not an issue for us," Lalu told media here.
Sadhu Yadav was a powerful leader during the Lalu-Rabri rule in Bihar.