A 40-year-old woman was gang raped by two office colleagues who, along with their two other associates, took her in a car and offered her a cold drink laced with a sedative before the sexual assault, police said yesterday.

The woman was rescued from east Delhi’s Dilshad Garden area on Wednesday night in an unconscious condition. “She told us four of her office colleagues took her in a car on Wednesday night. On the way, they offered her a cold drink laced with a sedative. When she became drowsy, two of them raped her at a secluded place,” said a police officer.