Tata Communications Ltdhas informed BSE that the meeting of the Board of Directors of the Company is scheduled on 15/10/2026 ,inter alia, to consider and approve Unaudited Financial Results for the quarter and half year ended September 30, 2026.

HQ/CS/CL.24B/18520 October 8, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, Bandra Kurla Complex, P.J. Towers, Dalal Street, Mumbai – 400 051 Mumbai – 400 001 SYMBOL: TATACOMM Scrip Code: 500483 Dear Sir / Madam, Sub: Board Meeting for Unaudited Financial Results for the quarter and half year ended September 30, 2026. Pursuant to Regulations 29(1)(a) and 50(1) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, it is hereby informed that a Meeting of the Board of Directors of Tata Communications Limited (“the Company”) is scheduled to be held on Thursday, October 15, 2026 to inter alia, consider, approve and take on record the Unaudited Standalone and Consolidated Financial Results along with the Limited Review Report of Statutory Auditors thereon for the quarter and half year ended September 30, 2026. Further, in terms of the Company’s Code of Conduct for Prevention of Insider Trading and Code of Corporate Disclosure Practices, the trading window of the Company has been closed from September 23, 2026, and shall remain closed till the expiry of 48 hours after the aforesaid financial results are declared to the Stock Exchanges. This disclosure is also available on the website of the Company at https://www.tatacommunications.com/investors/filings/. Thanking you, Yours faithfully, For Tata Communications Limited Zubin Adil Patel Company Secretary and Compliance Officer Tata Communications Limited Plot No. C21 & C 36 ‘G’ Block Bandra Kurla Complex Bandra (East) Mumbai 400098 India Regd. Office: VSB Mahatma Gandhi Road Fort Mumbai – 400 001 Tel: 91 92289 18171 email: investor.relations@tatacommunications.com CIN: L64200MH1986PLC039266 website: www.tatacommunications.com