BNP's Mahabub Uddin Khokan bagged the Noakhali-1 seat in Monday's election.
Results from the constituency's 105 polling centres showed Mahbub with election logo 'sheaf of paddy' polled 1,04,726 votes, while runner-up HM Ibrahim of Awami League secured 80,981 votes.
Intelligence chief at the Noakhali-1 election control room, deputy commissioner Abdus Salam, read out the signed results to reporters before handing them over.
Returning officer M Abdul Haque said he was at one with the results.
"Voting was held peacefully with no untoward incidents from 8am to 4pm," the RO added.
Polling centres in Noakhali-1 (Chatkhil-Sonaimuri) saw long queues of people ignoring chilly weather from morning, and peaceful voting through the day in the seat's deferred election.
Voters expressed satisfaction with a free and peaceful voting environment.
Eight candidates were vying for the ballots of 247,407 registered voters in the constituency.
The Election Commission postponed the Noakhali-1 parliamentary poll following the death of Gonotantree Party president and grand alliance candidate Nurul Islam in early December.
The commissionannounced the constituency's new election date of Jan 12, just days ahead of the Dec 29 elections to 299 of the total 300 parliamentary seats.
Police, Bangladesh Rifles and Rapid Action Batallion were deployed across the constituency as striking and mobile forces from early morning until ballot counting was complete, to ensure a trouble free vote.
The seat has earlier gone to BNP four times and Awami League twice.