The victim is Amena Begum, 30, said police.
The murder took place at the tin-shed house of the couple at Ambagan Rail Gate area on December 16, said Mohammad Shahinuzzaman, officer-in-charge of Khulshi Police station.
"The couple has two daughters and one son. They often locked into argument as the wife tried to stop her husband from an extramarital affair. On December 16, the couple locked into a brawl where Sohel at one point killed Amena by her scarf and fled the scene," said the OC.
The victim's brother, who resides near the spot, found the door locked from inside and informed police failing to get response, he added.