The seven accused, named in the FIR by the girl’s family, have been arrested in the last three days, the officer said.
Four of the seven arrested were minors, he said.
Among the three accused adults, two were remanded to police custody, while the other to judicial custody. The minors have been sent to a juvenile home.
The girl had gone to a deserted spot inside the tea garden at the request of one of the accused, stated to be her boyfriend, the officer said.
“When she reached the spot, she was allegedly raped by the seven on Sunday afternoon,” the police officer said, adding that the accused also videographed the act.
After the purported video clip was circulated on social media by the accused earlier this week, the family lodged an FIR.
The police arrested three accused from Jalpaiguri district and the four others from Alipurduar district, he added.