The incident occurred in the Kaichabari area around 9pm, said Ashuli Police Station Inspector Jabed Masud.
The deceased has been identified as 40-year-old Abu Taher. He was killed by his brother, 26-year-old Jahed Ali.
According to their sister Hasina Begum, Abu Taher wanted to sell a percentage of the land they inherited so he could travel abroad. The two brothers had been arguing for several days over the matter.
On Saturday night, once Taher fell asleep, Jahed entered his room with a machete and hacked him to death, Hasina Begum said. Police later came and recovered the body.
Jahed turned up to the police station suddenly on Saturday night wearing blood-soaked clothes and holding a bloody machete, said Ashulia Police Station Inspector Jabed Masud.
“He said his name was Jahed Ali and that he had just killed his brother. We arrested him. Later we went to the home and confirmed the truth of his statement.”
A murder case is being prepared at the Ashulia Police Station, the police official said.