Ruling Awami League (AL) candidate Shawkat Hachanur Rahman (Rimon) won the by-election to the Barguna-2 constituency in small margin.
He bagged 65,813 votes with 'boat' symbol, while his contender candidate Golam Sarwar Hiru of Islami Andolon Bangladesh got 57,993 vote with 'hand fan' symbol, Returning Officer Mostafa Faruk told the Daily Star.
The turnout rate was around 53.86 percent, said Forhad Hossain, senior assistant secretary of the Election Commission (EC).
The total voters of the constituency, which consists of three upazilas, is 2,31,173. The total number of polling centres is 96.
The election was held peacefully amid lukewarm response of the voters. Many voters did not come to polling centres due to heavy rainfall.
Although main opposition BNP did not contest in the election, many local level BNP leaders and activists were seen begging votes for Hiru
Talking to reporters on Thursday afternoon, Hiru alleged that AL men forcibly captured around a dozen of polling centres and drove out his agents to get out from the centres and put seal on ballot papers in favour of 'boat' symbol.
However, district AL organising secretary and coordinator of Rimon's electoral campaign coordinator Golam Sarwar Tuku denied the allegations as saying, "He (Hiru) is placing the allegation knowing his definite defeat."
Returning Officer Mostafa Faruk said none filed any complains with his office to this matter.
The constituency fell vacant following the death of lawmaker Golam Shabur Tulu in a road accident on July 26.
Vote casting started at 8:00am and continued till 4:00pm uninterruptedly.
Tight security measures were taken to avert any kind of untoward incidents, said EC officials.