A man who was among the people who got injured after a pick-up van overturned on the AJC Bose Road flyover on Wednesday afternoon died early on Friday.

The condition of six others injured in the accident is serious, doctors at the Calcutta National Medical College and Hospital said.

Ranjit Roy, 42, was admitted to the NCB ward of the hospital after being rescued from the accident spot. He was put on ventilation on Thursday, doctors said.

Following the death, police amended the charges and drew up a fresh case under Section 304 (II) of the IPC against the driver of the pick-up van, who is yet to be arrested.

Section 304 of IPC deals with culpable homicide not amounting to murder. “Clause II makes the driver guilty of being knowledgeable enough to understand that the manner in which he was driving the vehicle could cause death if it met with an accident,” a police officer said.

On Wednesday, around 4.25pm, the pick-up van carrying 29 people overturned on the AJC Bose Road flyover injuring seven passengers. They were returning from Babughat after performing the last rites of a family member.

The accident happened near the east-bound ramp of the flyover, which connects it to the Parama flyover.

Investigations revealed that the Tata 407 in which the family was returning was travelling at a high speed and lost control metres ahead of the spot where the flanks towards the Parama flyover and the Park Circus seven-point crossing diverge.