The trial of five men who are accused of gang raping and murdering a 23-year-old student in Delhi is due to start in a fast-track court today.
If convicted, the men could face the death penalty.
A sixth suspect, who is under 18, is expected to be tried in a juvenile court.
The physiotherapy student and her friend were lured into a bus on December 16, where they were both beaten and then the woman was taken to the rear of the bus and raped. She died in a Singapore hospital from her injuries nearly two weeks later.
The gang rape of a young woman in Delhi has exposed deep fissures in Indian society, as assault victims finally find their voices.
Speaking hours before his daughters attackers appeared in court, the father of the India rape victim has called for the harshest penalty.
After almost three weeks of protests over the rape of an Indian woman on a Delhi bus, the nation could face a national strike.