| Date | Details |
| | SEBI (Substantial Acquisition of Shares and Takeovers) (Amendment) Regulations, 2013 (as amended upto March 26, 2013 |
| 25-May-2016 | SEBI (SUBSTANTIAL ACQUISITION OF SHARES AND TAKEOVERS) (SECOND AMENDMENT) REGULATIONS, 2016 (w.e.f. May 25, 2016) |
| 22-Dec-2015 | SEBI (Substantial Acquisition of Shares and Takeovers) (Fourth Amendment) Regulations 2015 |
| 14-Aug-2015 | SEBI (Substantial Acquisition of Shares and Takeovers) (Third Amendment) Regulations, 2015 |
| 05-May-2015 | SEBI (Substantial Acquisition of Shares and Takeovers) (Second Amendment) Regulations, 2015 |
| 24-Mar-2015 | SEBI (Substantial Acquisition of Shares and Takeovers) (Amendment) Regulations, 2015 |
| 26-Mar-2013 | SEBI (Substantial Acquisition of Shares and Takeovers) (Amendment) Regulations, 2013 |
| 11-Sep-2011 | Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) (Amendment) Regulations, 2011 |
| 13-Apr-2010 | Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) (Amendment) Regulations, 2010 |
| 06-Nov-2009 | Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) (Third Amendment) Regulations, 2009 |
| 13-Feb-2009 | Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) (Second Amendment) Regulations, 2009 |
| 28-Jan-2009 | SEBI (Substantial Acquisition of Shares and Takeovers) (Amendment) Regulations, 2009 |
| 30-Oct-2008 | Securities And Exchange Board Of India (Substantial Acquisition Of Shares And Takeovers) (Amendment) Regulations, 2008 |
| 31-Mar-2008 | SEBI (Payment of Fees) (Amendment) Regulations, 2008 |
| 29-May-2007 | Securities And Exchange Board Of India (Substantial Acquisition Of Shares And Takeovers) (Amendment) Regulations, 2007 |
| 23-Apr-2007 | SEBI (Manner of Service of Summons and Notices issued by the Board) (Amendment) Regulations, 2007 |
| 21-Aug-2006 | Corrigendum to earlier notifications S.O. No.5(E), 28(E) and 779(E) of 2005 |
| 21-Aug-2006 | Securities And Exchange Board Of India (Substantial Acquisition Of Shares And Takeovers) (Second Amendment) Regulations, 2006 |
| 26-May-2006 | Securities And Exchange Board Of India (Substantial Acquisition Of Shares And Takeovers) (Amendment) Regulations, 2006 |
| 30-Dec-2004 | Securities and Exchange Board of India (Substantial Acquistion of Shares and Takeovers)(Second Amendment) Regulations 2004 |
| 30-Aug-2004 | Securities and Exchange Board of India (Substantial Acquistion of Shares and Takeovers)(Amendment) Regulations 2004 |
| 09-Sep-2002 | Securities and Exchange Board of India (Substantial Acquistion of Shares and Takeovers)(Second Amendment) Regulations 2002 |
| 29-Jan-2002 | Securities and Exchange Board of India (Substantial Acquistion of Shares and Takeovers)(Amendment) Regulations 2002 |
| 20-Feb-1997 | Securities and Exchange Board of India (Substantial Acquistion of Shares and Takeovers) Regulations 1997 |