Rapists carried on with normal work after the crime: Police

But luck ran out for the men within 24 hours as police, who were aided by the description provided by the victims about the vehicle, zeroed in on them and even arresting one from Rajasthan where he was in hiding.

Just before raping the 23-year-old para-medical student in a moving bus on Sunday night and beating her male friend who tried to protect her, the gang of six men, two of them still absconding, looted a carpenter by providing him a lift in the bus.

These details that emerged during the ongoing probe into the dastardly crime were given by Delhi Police Commissioner Neeraj Kumar at a news conference today.

The arrested have been identified as driver Ram Singh, his brother Mukesh, Pawan, a fruit seller, and Vinay, an assistant instructor in a gymnasium. Two persons Akshay Thakur and Raju are still on the run.

"Pawan and Vinay went back to their normal vocations and pretended nothing happened while Ram Singh and Akshay took the bus to Noida in the early hours of Monday to avoid being caught.

"But later Ram Singh thought nothing would happen and brought the vehicle back to R K Puram where it was detected on secret information and while all similar vehicles were being checked," Kumar said.

Just before heading for a joyride, he said, they had a party. Ram Singh and his helper Akshay had cooked chicken and had a small party along with his younger brother Mukesh, also a driver-cum-cleaner and staying in the same neighbourhood.

"They decided to go for a joy ride and have fun while picking some extra bucks from giving lift to people so that more drinks can be bought," Chhaya Sharma, Deputy Commissioner of Police (South), said.(MORE)