The accident occurred near Inamguda village of Ranga Reddy district.
According to police, the car travelling to Hyderabad from Vijayawada lost control and after hitting the divider, collided with the Telangana State Road Transport Corporation (TSRTC) bus coming from the opposite direction.
Three people in the car were killed.
The accident happened as the car was being rashly driven, police added.(IANS)