Intimation relating to closure of Trading Window.

September 23, 2026 BSE Limited National Stock Exchange of India Ltd. Listing Department Listing Department P. J. Towers, Exchange Plaza, Plot No. C-1, Block G, Dalal Street, Fort Bandra Kurla Complex, Mumbai – 400 001 Bandra (E), Mumbai – 400 051 Scrip Code: 532371 Scrip Symbol: TTML Sir/Madam, Subject: Intimation of Closure of Trading Window Pursuant to the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015, as amended from time to time, and the Company’s Code of Conduct for Prevention of Insider Trading and Code of Corporate Disclosure Practices, the trading window for dealing in the equity shares of the Company by the Designated Persons and their immediate relatives shall remain closed from Thursday, October 1, 2026 till 48 hours after the conclusion of Board Meeting convened for consideration and approval of the financial results for the 2nd quarter and half year ending on September 30, 2026. The date of the Board meeting at which the aforesaid financial results are to be approved will be informed in due course. This is for your information and records. Thanking you, Yours faithfully, For Tata Teleservices (Maharashtra) Limited Amit Gupta Company Secretary & Compliance Officer Membership No.: ACS 13518 Place: Nabvi Mumbai