Anant Kumar Singh won Mokama with 91,416 votes, defeating RJD's Veena Devi by 28,206 votes after 25 rounds of counting.
64% voter turnout recorded on November 6 from approximately 3 lakh electors in the first phase of Bihar assembly elections.
Victory marks Singh's return to JD(U) under NDA, which leads in 185 of 243 seats statewide with 67.13% overall turnout.