January 23, 1996: Priyadarshani Mattoo raped and killed allegedly by Santosh Kumar Singh. Delhi Police registers FIR
January 25, 1996: Case handed over to the CBI. Agency registers case.
April 11, 1996: CBI files chargesheet in the case against Santosh Singh.
June 20, 1996: Date of committal of the case to Additional Sessions Judge General B B Chowdhury.
August 29, 1996: Charges framed.
August 11, 1997: Trial starts in the court of Additional Solicitor General S C Mittal.
January 3, 1998: Prosecution evidence closes. 50 witnesses examined by the court. No Defence witness.
April 18, 1998: Agruments closed in the case but was marred by a controversy of allegations of money changing hands ahead of judgement. The case was transferred to ASJ G P Thareja.
April 21, 1998: Case admitted with Thareja June one, 1996: Thareja summons two prosecution witnesses -- Inspector Lalit Mohan of Delhi Police and Prof G V Rao of Microbiological Centre.
June 1, 1996: CBI submits case diaries before Additional Sessions Judge Thareja.
Nov 30, 1998: ASJ Thareja begins hearing Defence and Prosecution witnesses.
March 31, 1999: Examination of witnesses closes.
December 3, 1999: ASJ Thareja delivers judgement; Santosh Singh acquitted; CBI lashed for shoddy investigations.
Feb 29, 2000: CBI appeals in Delhi High Court.
April 26, 2000: High Court admits appeal.
Oct 17, 2000: High Court issues bailable warrant against Santosh Singh.
Dec 17, 2001: CBI files appeal for early hearing before High Court.
Nov 25, 2002: CBI files application before High Court for early hearing.
Feb 14, 2003: Accused files application for inspection of files.
March 25, 2003: High Court dismisses the application.
July 22, 2006: CBI files another application for early hearing.
July 28, 2006: Delhi High Court fixes Aug 31 as date for hearing.
August 31, 2006: High Court orders daily hearings in the case.
Sept 27, 2006: High Court reserves judgment in the case. CBI seeks action against five Delhi Police officials.
Oct 17, 2006: High court convicts Santosh Singh for raping and killing Priyadarshani Mattoo.