After the December 16 gang rape, the Indian government had introduced tougher laws other offenders and a range of other judicial and policing reforms.
The attack had sparked public outrage and mass movement in the whole nation.
The victim died in a Singapore hospital on December 29, 2012 after a 13 day struggle to survive injuries so grievous that her intestines had to be removed.
She underwent three major surgeries - including one to remove her intestines - and suffered a cardiac arrest in India before being flown to Singapore for treatment.
