2013
Jan 3 : Delhi Police files charge-sheet against five adult accused for offences including murder, gang rape, attempt to murder, kidnapping, unnatural offences and dacoity.
Jan 28: Juvenile Justice Board (JJB) rules that sixth accused is a minor.
Feb 2: Five adult accused are charged with 13 offences including murder.
March 11: Ram Singh, the bus driver, is found hanging in his cell in Tihar jail.
March 21: Rape law in the country amended, new tougher anti-rape law to punish sex crimes, including death for repeat rape offenders.
Aug 31: JJB convicts the juvenile for gang rape and murder and awards three years term at a probation home.
Sep 10: Fast Track court convicts Mukesh, Vinay, Akshay, Pawan of 13 offences including gang rape, unnatural offence and murder of the woman and attempt to murder her male friend.
Sep 13: Fast track court awards death to all four convicts. Trial court refers the case to Delhi High Court for confirmation of death sentence.
Nov 1: The Delhi High Court starts hearing the case on a daily basis.
2014
March 13: The Delhi High Court upholds the death sentences awarded to the four convicts.
2015
Dec 20 : Delhi High Court refuses to stay the release of the juvenile. He walks out of a correction home after spending three years.
2016
April 3: Supreme Court begins hearing in the case.
2017
March 27: Supreme Court reserves verdict after nearly a year of hearing the case.
May 5: SC upholds death penalty of four accused - Akshay Thakur, Vinay Sharma, Pawan Gupta and Mukesh Singh.
2018
July 9 : SC rejects review petition filed by Pawan, Mukesh and Vinay
Dec 13 : Nirbhaya's parents move Patiala House court seeking expediting the execution of convict
2019
Oct 29 : Tihar Jail gives seven days time to Nirbahaya rape and murder convicts to file the mercy petition or else they will go to court and seek black warrants
Nov 8 : Vinay Sharma files mercy petition with Delhi government
Nov 29 : Home department of Delhi government rejects Vinay Sharma's mercy petition forwards the file to chief secretary
Nov 30 : Chief secretary rejects it and moves the file to Home Minister Satyendera (check spelling) Jain
Dec 1 : Jain rejects it and forwards it to LG's office
Dec 2 : LG rejects mercy plea of Vinay, gives approval to Delhi govt decisions
Dec 6 : MHA has sent to President, Delhi govt recommendation rejecting Vinay's mercy plea
Dec 10 : Akshay files a review petition in Supreme Court.
Dec 17: CJI recuses from hearing review plea.
( With inputs from IANS )