JD (U) MLA Anant Singh was arrested by Bihar Police from his residence on Wednesday evening.
Singh, an MLA from Mokamah, is an accused in a murder case.
According to reports, outgoing Senior Superintendent of Police (SSP) Jitendra Rana had said that Singh's name had cropped up after the interrogation of four persons arrested in connection with one Putush Yadav's murder.
