The auto driver ran away in fright, as the girl hurled stones and smashed the glasspanes of the auto.
The girl later told police that she had taken the auto from Malad to meet her boyfriend at 2 am near Ville Parle.
Police inspector Vijay Khaire, who took down the girl's statement, said, there appeared to be some inconsistencies in the girl's version as to why she had gone to meet her boyfriend after midnight.
"We are carrying out a test to check whether the girl was drunk or not. If she was drunk, then we will take action", Khaire said.