While Blubell R Sangma secured 8,042 votes, Philipole Marak secured 5,492 votes, state election office said.
The other candidates, Kalpana D Sangma from Garo National Council and Thinkerwin R Marak (Independent) secured 5,009 and 1,189 votes respectively.
The Chokpot Assembly Constituency fell vacant following the death of Garo National Council (GNC) legislator, Clifford R Marak.
While Clifford R Marak's wife Kalpana Sangma contested on GNC ticket, the Congress winner is the wife of former legislator Mason S Sangma.