"We are yet to identify the car which hit Narain. We are waiting for her to recover so that we can record her statement which may help us to zero in on the vehicle," said a police officer associated with the probe.
Meanwhile, Narain has been shifted to the main AIIMS hospital from its Trauma Centre.
"Her condition is stable and she is showing signs of improvement. She is responding to medicines and is now able to talk," said Dr D K Sharma, Medical Superintendent of AIIMS.
Narain sustained injuries on her face, nose and arms in the incident. She had to undergo a nine-hour surgery during which two titanium rods were implanted in her arms.
A case of causing injuries due to rash and negligent driving was registered at Hauz Khaz police station in this regard.