| 
                                                08 Aug 2025
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                22 May 2025
                                             | 
                                            Audited Results & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Feb 2025
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                25 Oct 2024
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Aug 2024
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                17 May 2024
                                             | 
                                            Audited Results & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Feb 2024
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Nov 2023
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Aug 2023
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                18 May 2023
                                             | 
                                            Audited Results & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Feb 2023
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Nov 2022
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Aug 2022
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                23 May 2022
                                             | 
                                            Audited Results & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Feb 2022
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Nov 2021
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Aug 2021
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jun 2021
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Feb 2021
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Nov 2020
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Aug 2020
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                01 Jun 2020
                                             | 
                                            Audited Results & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                07 Feb 2020
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Nov 2019
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Aug 2019
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                16 May 2019
                                             | 
                                            Audited Results & Final Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Feb 2019
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                12 Nov 2018
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Aug 2018
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                23 May 2018
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                07 Feb 2018
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                15 Nov 2017
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                08 Aug 2017
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                05 May 2017
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Feb 2017
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Nov 2016
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Aug 2016
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                18 May 2016
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Feb 2016
                                             | 
                                            Quarterly Results | 
                                             Appointed Shri Sanjay Aggarwal as Chief Financial Officer of the Company with immediate effect.   | 
                                        
                                    
                                        
                                            | 
                                                05 Nov 2015
                                             | 
                                            Quarterly Results | 
                                             Re-designated Mr. Amitava Bose from "Manager & Chief Operating Officer" of the Company to "Chief Operating Officer" of the Company.   | 
                                        
                                    
                                        
                                            | 
                                                07 Sep 2015
                                             | 
                                            Others | 
                                             To consider and approve the terms of the proposed Rights Issue, inter-alia, the issue price, entitlement ratio, record date, etc.   | 
                                        
                                    
                                        
                                            | 
                                                10 Aug 2015
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                15 May 2015
                                             | 
                                            Audited Results | 
                                             Approved the appointment of and payment of remuneration to Shri Y.S. Lodha, as "Manager and Chief Executive Officer" of the Company.   | 
                                        
                                    
                                        
                                            | 
                                                31 Mar 2015
                                             | 
                                            Rights Issue | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                06 Feb 2015
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Nov 2014
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Aug 2014
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                19 May 2014
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jan 2014
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Nov 2013
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                10 Aug 2013
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                21 May 2013
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                09 Feb 2013
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Oct 2012
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jul 2012
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                03 May 2012
                                             | 
                                            Audited Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 Feb 2012
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 Nov 2011
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jul 2011
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                14 May 2011
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Jan 2011
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Oct 2010
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 May 2010
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Jan 2010
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Oct 2009
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jul 2009
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                11 May 2009
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2009
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                31 Oct 2008
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Jul 2008
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                07 May 2008
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2008
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Oct 2007
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                23 Jul 2007
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                23 May 2007
                                             | 
                                            Audited Results & Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                23 Jan 2007
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                05 Sep 2006
                                             | 
                                            Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Jul 2006
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Apr 2006
                                             | 
                                            Quarterly Results & Interim Dividend | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                18 Apr 2006
                                             | 
                                            Scheme of Amalgamation | 
                                             Inter alia, to consider and approve the Scheme of Amalgamation of Optic Fibre Goa Ltd with the Company.   | 
                                        
                                    
                                        
                                            | 
                                                24 Jan 2006
                                             | 
                                            Quarterly Results & Merger | 
                                             Merger of Optic Fibre Goa Ltd with the Company.  Optic Fibre Goa Ltd is a Joint Venture between Vindhya Telelinks Ltd, Birla Ericsson Optical Ltd, and the company.   | 
                                        
                                    
                                        
                                            | 
                                                26 Oct 2005
                                             | 
                                            Quarterly Results | 
                                             (Revised)   | 
                                        
                                    
                                        
                                            | 
                                                25 Jul 2005
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                26 May 2005
                                             | 
                                            Dividend & Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2005
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                27 Oct 2004
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                27 Jul 2004
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                05 May 2004
                                             | 
                                            Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jan 2004
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Oct 2003
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jul 2003
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                03 May 2003
                                             | 
                                            Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                28 Jan 2003
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Oct 2002
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jul 2002
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                02 May 2002
                                             | 
                                            Accounts | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                30 Jan 2002
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                24 Oct 2001
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                29 Jul 2001
                                             | 
                                            Quarterly Results | 
                                             -   | 
                                        
                                    
                                        
                                            | 
                                                25 Apr 2001
                                             | 
                                            Dividend & Accounts | 
                                             -   |