A 12-year-old girl was allegedly gang-raped by four men, including two of her close friends, at a birthday party, the police said.
According to the police complaint, the four men forced her to drink and then took her to a house in South Kolkata's Ekbalpore where they repeatedly raped her on Thursday evening.
The four accused, all school dropouts, were arrested on Friday. A case has been registered against them under the Protection of Children from Sexual Offences Act.
They will be taken to the city sessions court on Saturday.