The deceased have been identified as Durgawati and Vimla (both aged 45), police said.
They were on morning walk when they were hit by a government ambulance in Aaspur Devsara police station area near Amargarh bazar, they said.
The ambulance driver fled the scene of the accident with the vehicle and an FIR has been lodged against him, police said adding that the bodies have been sent for postmortem examination.