The Indian Supreme Court has upheld death sentences for four men convicted of a brutal gang rape in Delhi.
Vinay Sharma, Akshay Thakur, Pawan Gupta and Mukesh Singh were originally sentenced in September 2013, but had appealed the decision.
They were convicted after sexually assaulting a 23-year-old university student for hours on a moving bus in New Delhi.
The woman, who was violated with an iron bar, suffered such severe internal injuries that some of her organs had to be removed. She later died in hospital.
"We are very happy that [the] Supreme Court has heard our voice, and that they understood Nirbhaya's pain in this matter, and that along with Nirbhaya the whole country has found justice," the victim's father, Badrinath Singh, told reporters outside the court.
The case shocked India, and led to widespread demonstrations against the slow criminal justice system and government inaction.
Many cases never even get to court in a country where there is intense social pressure against families reporting sexual assaults, and where women are often blamed for the attacks they suffer.
When women do report rapes, police often refuse to file charges and pressure the victims to reach a compromise with their attackers.
However, in a sign that things may be changing, the government has vowed to enlist more women police officers and toughen sexual assault laws.
New fast-track courts have been set up to deal specifically with crimes against women.
"We need to work so that the type of crime that happened to Nirbhaya will not happen again," Asha Singh, the victim's mother, told reporters at a press briefing.