According to police, there was a minor scuffle between the deceased V Ramesh and the trio, following which he fell unconscious and died at a hospital due to cardiac arrest on Wednesday night.
The accused, all neighbours of Ramesh, had been absconding since the incident and they were taken into custody by a special team from Malappuram, Chavakkad Circle Inspector A J Johnson said.
He said the arrested, hailing from Palayoor near here, had allegedly made some remarks when Ramesh was riding a bike along with his son and daughter, which led to the scuffle.
The post mortem report also said that coronary artery disease was the cause of the death, he said.