The security guard of the college, Bhola Das, has been arrested while four students named by her are absconding.

Admitted in a local hospital earlier, the girl lodged an FIR with the Salanpur police station in Burdwan district on Friday, naming the five. Among them is Samyo Mandal, the general secretary of the college union, who is a member of the Trinamool Congress Chhatra Parishad (TMCP). Police have registered a case of gangrape.

Apart from Mandal, the girl has said fellow college student Abhi Ghosh and an “outsider”, Mithilesh Ojha, raped her. Her complaint also names a girl student, Shobhana, and says Das helped them commit the crime.

The girl said she had gone to attend the birthday party of a friend in the union room when she was served a drink laced with sedatives. She says she fell unconscious soon after and was locked in the room. Later in the evening, the four accused students returned and allegedly gangraped her.