A Delhi Court later sent the main accused Ram Singh to five days police custody.

According to police, the men were out on a joyride and had been drinking. But before perpetuating the brutal crime, the accused picked up a man and dumped him after robbing him of his valuables.

Doctors at Delhi's Safdarjung Hospital, who said they had never seen a rape victim who had been so grievously injured, said the young physiotherapist was still critical and continued to be on ventilator support. Her condition "slightly" deteriorated late evening.

"The patient is in critical condition and she is now trying to speak. We can say it is a grievous injury and her intestines are severely damaged," a doctor told IANS.

Congress president Sonia Gandhi Tuesday night visited the hospital and met doctors treating the girl.