The Haryana Police’s Special Investigating Team (SIT) on Sunday arrested the two main accused, Pankaj and Manish.
Both were on the run for 11 days after the rape. They were arrested from Satnali in Mahendragarh district.
A court in Kanina sent them to four days of police custody. Pankaj is a soldier in the Indian Army.
The police on Monday were interrogating the two to find out whether more people were involved in the crime as has been suggested by the victim’s family.
The victim, a school topper, was abducted and gang raped after being drugged on September 12 while she was on the way to a coaching institute.
Earlier, the Special Investigation Team (SIT) had announced the arrest of the third accused, Nishu and two other men — Deendayal, the owner of a tubewell room where the crime took place in Mahendragarh, and Sanjeev Kumar, a medical practitioner who had treated the victim.
Both Deendayal and Sanjeev were booked as they did not inform police despite knowing about the crime.
The police had earlier announced a reward of Rs one lakh for providing information on the absconding main accused, all residents of Kanina village.
The victim, who has identified her attackers, and her parents had earlier accused the police of not taking action and dealing with the matter casually.
She alleged that her attackers gave her sedative-laced water to drink and gang raped her in a room on an agricultural field till she fell unconscious. They later dumped her at a bus stop near her village.