Change in Director(s)

HQ/CS/CL.24B/18519 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: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Completion of tenure of Mr. Ashok Sinha, Independent Director Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (‘Listing Regulations’), please note that the tenure of Mr. Ashok Sinha (DIN: 00070477) as an Independent Director of the Company has ended on October 7, 2026. Accordingly, he has ceased to be an Independent Director of the Company with effect from October 8, 2026. The Board places on record its appreciation for the significant contributions made by Mr. Ashok Sinha during his tenure with the Company. Details as required under Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular No. HO/49/14/14(7)2025-CFD POD2/I/3762/2026 dated January 30, 2026 are enclosed as Attachment A. The aforesaid documents are also placed on the website of the Company at www.tatacommunications.com/investors. Kindly take the same on your records. 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 Attachment A Details required under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI Master Circular No. HO/49/14/14(7)2025-CFD POD2/I/3762/2026 dated January 30, 2026. Particulars Mr. Ashok Sinha Reason for change Completion of tenure of Mr. Ashok Sinha as an Independent Director on October 7, 2026. Date of cessation October 8, 2026 Term of appointment / reappointment Brief profile Not Applicable Disclosure of relationships between directors 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