The four-month pregnant woman, identified as Usha, was killed after crashing on the road in this city on Wednesday, triggering huge protests. The officer was taken into custody later. The 30-year-old woman wore no helmet.
"It is a clear case of murder. The traffic police initially allowed us to go. But this official chased us and kicked the bike, resulting in my wife's death," her husband Raja, who was riding the bike without a helmet, told a television channel on Thursday.
Another man told the channel that Kamaraj should be booked for murder.
On Wednesday, a huge crowd massed on the road after the incident, shouting slogans against the police.
The protesters stoned several police vehicles. The police used batons to disperse the mob, injuring several people.
Kamaraj was arrested for culpable homicide not amounting to murder.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)