Dear Sir/Madam please take on record attached document for your kind consideration.

TTL/NSE/BSE/2026-27 Dt.14.08.2026 To To The Manager, The Manager, M/s.National Stock Exchange Of India Limited, Bombay Stock Exchange Limited, “Exchange Plaza”, Bandra Kurla Complex, Floor No. 25, PJ Towers, Bandara (East), MUMBAI – 400 051 Dalal Street, MUMBAI – 400 001 Scrip Code: TNTELE Scrip Code:523419 Dear Sir/Madam, SUB: Un-audited Financial Results of M/s.Tamilnadu Telecommunications Limited for the first quarter ended on 30.06.2026 With reference to Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, in the meeting held on 14.08.2026 (Friday) at 11.30 a.m, the Board of Directors of M/s.Tamilnadu Telecommunications Limited has approved the un-audited results of the Company for the first quarter ended 30.06.2026. Please find enclosed herewith the following for your information and records: 1) Duly authenticated Statement of the the Unaudited Fianancial results of the Company for the first quarter ended on 30.06.2026 along with other relevant periods, as per the SEBI prescribed format. Kindly take above information on record. Thanking You, Yours Faithfully, J Ramesh Kannan Managing Director DIN 09292181 Encl. as above