The incident took place last night when the victim, a resident of Kulgachia area of neighbouring Howrah district, took a taxi from the area under Watgunge police station around 9 PM last night.
The driver took the taxi to a deserted spot in Babughat area where a lorry with four youths inside was waiting. The girl was forcibly pulled inside the lorry and was allegedly gangraped.
Later the victim, who works with a firm in Khidderpore, was dumped in Babughat area itself.
"We have started investigation into the case but none has been arrested yet," Joint Commissioner Police (Crime) Pallab Kanti Ghosh said.