1. September 12, 1996 – The Constitution (81st Amendment) Bill – by H D Deve Gowda government.
- Protests led by OBC MPs.
- Demanded reservation for OBC women.
- Nov 28, 1997 – Congress withdrew support.
- Coalition government supported by it falls.
- Lok Sabha was dissolved.
- Bill lapsed.
2. July 20, 1998 – Women Reservation Bill is tabled again – under NDA government led by Atal Bihari Vajpayee.
- Opposed by RJD, SP and some OBC MPs
- April 1999 – AIADMK withdrew support.
- Vajpayee government falls.
- Lok Sabha dissolved.
- Bill lapsed.
3. December 23, 1999 – Bill was tabled again. The Constitution (85th Amendment Bill).
- Opposed by RJD and SP
- May 2004 – NDA lost general election.
- Vajpayee government falls.
- Lok Sabha dissolved.
- Bill lapsed.
4. May 6, 2008 – The Constitution (108th Amendment) Bill, 2008 – by UPA government in Rajya Sabha.
- Amid internal differences in UPA coalition and cabinet ministers
- May 8, 2008 – referred to the Standing Committee on Personnel, Public Grievances, Law, and Justice
- December 17, 2009 – the Standing Committee submits its report.
- February 25, 2010 – UPA government led by Manmohan Singh approved the Bill.
- March 9, 2010 – Rajya Sabha passes the Bill.
- But was never introduced in Lok Sabha owing to internal differences.
- May 2014 – UPA lost general election.
- Manmohan Singh’s government falls.
- Lok Sabha dissolved.
- Bill lapsed.