The girl in her complaint alleged that her mother had sold her to a woman on January 5 last and she was taken by train to a red light area in Kolkata from Debipur station in Memari and sexually harassed in confinement, Memari Officer-in-charge Debabrata Bandyopadhyay said.
The girl further alleged that she and another trafficked woman were forced to board a UP-bound train on January 8 at Bidhan Nagar Road station in Kolkata in the custody of a female trafficker but they managed to elude the agent as the train halted at Burdwan junction.
The girl's mother was taken to Memari police station and is being interrogated in the presence of woman cops but she is denying having sold her, he said.
The woman accompanying the girl could not be traced.