Ruling Awami League-backed chairman candidate Sanowar Hossain Chhanu was declared unofficially elected in Sherpur sadar upazila election held on Thursday.
Chhanu bagged 1,22,896 votes while his nearest candidate Jatiya Party-backed chairman contender Ilias Uddin polled 34,558.
District Election official Mukhlesur Rahman said the turnout of voters was 55 percent.
Five candidates contested the election for the post of upazila chairman.
Earlier, voting in the upazila election was held peacefully from 8am to 4pm without any break.