Kolkata/IBNS: The 31-year-old medical student watched Neeraj Chopra's silver medal-winning throw at the Paris Olympics, dined with batchmates and rang up parents before entering into the seminar room, where she was allegedly raped and murdered by civic volunteer Sanjoy Roy, who is now under arrest.

The doctors had reportedly ordered out last Thursday night and they ate together watching the Olympics.

While others joined the night duty, the trainee doctor headed to the seminar room to study.

Some reports have claimed she had fallen asleep at one point inside the seminar hall.

The body of the 31-year-old post-graduate student had injury marks and was recovered under mysterious conditions.

The victim, who hailed from Sodepur near Kolkata, and was pursuing her post-graduation in Chest Medicine. She was on duty on Thursday night.

The initial autopsy report found her body had several injury marks.

The report states that the victim was bleeding from eyes, mouth and private parts. Injury marks were visible on the face, lips, neck, nails, stomach, right-hand ring finger, left leg and left leg ankle, reported The Telegraph.

Police were led to the arrest of Sanjoy Roy by a bluetooth headset which was lying next to the victim's body.

The same bluetooth headset was seen on Sanjoy's neck while entering the building but was missing when he left.