The incident took place this morning on a bridge around 16 km from Amirgarh in Banaskantha district of Gujarat when seven members of a Udaipur-based family were going to a water park in Mehsana, Amirgarh Police Station Officer Chamanbhai said.
The driver lost control of the vehicle due to unknown reasons. After this, the car overturned after hitting the wall and caught fire, he said.
The deceased have been identified as Monika Shahu (40), and her daughters Nehal Shahu (5) and Monal Shahu (11) and one Vimani Shahu (6).