Additional District and Sessions judge Vimal Kumar Sinha acquitted MLA Anil Singh and his four associates for lack of evidence against them in the murder of Ritesh Kumar seven years ago.
Kumar was shot dead in Daibigaha village in Narhat police station area on February 3, 2005 during the assembly polls.
The kins of the victim had lodged an FIR charging Singh and his associates with killing Kumar.
Singh represents Hisua assembly seat in Nawada district.
