| 
                                                14 Aug 2025
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2025
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2025
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                13 Nov 2024
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Aug 2024
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2024
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                13 Feb 2024
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Nov 2023
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Aug 2023
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2023
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2023
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Nov 2022
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Aug 2022
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                18 May 2022
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2022
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                01 Feb 2022
                                             | 
                                            Others | 
                                             To consider Fund Raising   | 
                                        
                                    
                                        
                                            | 
                                                12 Nov 2021
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                23 Jul 2021
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                02 Jun 2021
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Feb 2021
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Nov 2020
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                03 Sep 2020
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jun 2020
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2020
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Nov 2019
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Aug 2019
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2019
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                26 Feb 2019
                                             | 
                                            Others | 
                                             Inter alia, consider and approve raising of funds by the Company through one or more permissible mechanisms as may be deemed appropriate by the Board.   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2019
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Nov 2018
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Aug 2018
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2018
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Mar 2018
                                             | 
                                            Others | 
                                             Elevation of Dr. Rajesh Jain, Joint Managing Director to the position of Managing Director of the Company.   | 
                                        
                                    
                                        
                                            | 
                                                13 Feb 2018
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Nov 2017
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                13 Sep 2017
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                26 May 2017
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2017
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Nov 2016
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Aug 2016
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                27 May 2016
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Feb 2016
                                             | 
                                            Quarterly Results | 
                                             1. Mr. Mukul Gupta, as a non-executive independent director of the Company, and  2. Mr. Ankesh Jain, as a Whole-time Director and Key Managerial Personnel of the Company.   | 
                                        
                                    
                                        
                                            | 
                                                06 Nov 2015
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                13 Aug 2015
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2015
                                             | 
                                            Audited Results | 
                                             Revised from 28/05/2015   | 
                                        
                                    
                                        
                                            | 
                                                13 Feb 2015
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Oct 2014
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                01 Aug 2014
                                             | 
                                            To consider raising of funds | 
                                             Raising of funds by way of issue of securities aggregating upto Rs. 250 Crore or equivalent thereof in any currency.   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2014
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                13 Feb 2014
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Nov 2013
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                08 Aug 2013
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 May 2013
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                08 Feb 2013
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Nov 2012
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                07 Aug 2012
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                18 May 2012
                                             | 
                                            Audited Results & Dividend | 
                                             To consider the matter pertaining to recommendation / passing over of dividend.   | 
                                        
                                    
                                        
                                            | 
                                                10 Feb 2012
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                21 Oct 2011
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                27 Jul 2011
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                13 May 2011
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Jan 2011
                                             | 
                                            Redemption of outstanding ZCCBs | 
                                             To consider the redemption of outstanding Zero Coupon Convertible Bonds aggregating USD 36.8 million, due for redemption on February 14, 2011.   | 
                                        
                                    
                                        
                                            | 
                                                09 Nov 2010
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                20 Jul 2010
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                07 May 2010
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2010
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                21 Jan 2010
                                             | 
                                            Others | 
                                             The Company will now purchase its own fully paid-up 55,92,000 Equity Shares of Re. 1 each at a price not exceeding Rs.229 per Share for an aggregate amount not exceeding Rs. 1,280,568,000.   | 
                                        
                                    
                                        
                                            | 
                                                30 Dec 2009
                                             | 
                                            Buy Back of Shares | 
                                             The Board has approved the buy-back of 55,92,000 Equity Shares for an aggregate amount not exceeding Rs. 105.69 Crs & Approved maximum buy-back price as Rs. 189/- per Share through Postal Ballot.   | 
                                        
                                    
                                        
                                            | 
                                                29 Oct 2009
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jul 2009
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                27 May 2009
                                             | 
                                            Audited Results & Dividend | 
                                             To decide not to recommend any dividend on the Equity Shares of the Company for the financial year ended 31st March, 2009.   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2009
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Oct 2008
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Jul 2008
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                26 Jun 2008
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                24 Jan 2008
                                             | 
                                            Quarterly Results | 
                                             (Revised)   | 
                                        
                                    
                                        
                                            | 
                                                23 Oct 2007
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                24 Jul 2007
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                18 Jan 2007
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                19 Oct 2006
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                20 Jul 2006
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                22 May 2006
                                             | 
                                            Accounts & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                17 Jan 2006
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                25 Oct 2005
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Sep 2005
                                             | 
                                            Raising of funds | 
                                             To consider inter-alia, to raise funds from domestic/international markets through issue of Equity Shares/FCDs/PCDs/CDs/FCCBs/Euro Issue and/or other securities aggregating upto Rs.500 Crores.   | 
                                        
                                    
                                        
                                            | 
                                                28 Jul 2005
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 May 2005
                                             | 
                                            Dividend & Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2005
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Oct 2004
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Jul 2004
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jun 2004
                                             | 
                                            Dividend & Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jan 2004
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Oct 2003
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Jul 2003
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 May 2003
                                             | 
                                            Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                26 Oct 2002
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Jul 2002
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                27 Jun 2002
                                             | 
                                            Accounts & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                08 Mar 2002
                                             | 
                                            Interim Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Jan 2002
                                             | 
                                            Quarterly Results | 
                                             -   |