RJD chief Lalu Prasad Yadav on Sunday criticised Bihar CM Nitish Kumar, saying that the JD(U) leader is "mentally unwell". "His words have no meaning," Lalu added. Commenting on the upcoming Bihar Assembly elections, the 76-year-old said, "RJD and I.N.D.I.A bloc will win the polls just like it will emerge victorious in Haryana, Jammu and Kashmir, Jharkhand and Maharashtra."