Grant of stock options under ''Tata Communications Limited - Stock Unit Plan 2023''.

HQ/CS/CL.24B/18475 July 28, 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: Grant of stock options under ‘Tata Communications Limited - Stock Unit Plan 2023’ Pursuant to the authority granted by the shareholders at the 37th Annual General Meeting of the Company held on July 18, 2023, we hereby inform you that the Nomination and Remuneration Committee ("NRC") of the Company has approved the grant of 2,49,092 (Two Lakh Forty Nine Thousand and Ninety Two) Restricted Stock Units (‘RSUs’) to eligible employees under the Tata Communications Limited Stock Unit Plan 2023, in accordance with the provisions of the SEBI (Share Based Employee Benefits and Sweat Equity) Regulations, 2021. Of the total RSUs granted, 239,080 RSUs have been granted with an effective grant date of May 1, 2026, and 10,012 RSUs have been granted with an effective grant date of August 1, 2026. This disclosure is made pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and the required information in compliance with SEBI Master Circular No. HO/49/14/14(7)2025-CFD POD2/I/3762/2026 dated January 30, 2026, pertaining to the above grant are provided in Annexure A. This is for your information and records. Thanking you, Yours faithfully, For Tata Communications Limited Zubin Adil Patel Company Secretary and Compliance Officer Encl.: as above 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 India Tel: 91 92289 18171 email: investor.relations@tatacommunications.com CIN: L64200MH1986PLC039266 website: www.tatacommunications.com Disclosure under Para B of Part A of Schedule III to the Regulation 30 of the SEBI Listing Regulations No. Items of Disclosure Description 1. Brief details of options granted 2,49,092 (Two Lakh Forty Nine Thousand and Ninety Two) RSUs granted to eligible employees as determined by the NRC. Of the total RSUs granted, 239,080 RSUs have been granted with an effective grant date of May 1, 2026, and 10,012 RSUs have been granted with an effective grant date of August 1, 2026. 2. Whether the scheme is in Yes terms of Share Based Employee Benefits and Sweat Equity) Regulations, 2021 3. Total number of shares covered 2,49,092 (Two Lakh Forty Nine Thousand and Ninety by these options Two) RSUs exercisable into not more than 2,49,092 (Two Lakh Forty Nine Thousand and Ninety Two) equity shares of face value of ₹10/- (Indian Rupees Ten Only) each fully paid up. 4. Pricing formula ₹10/- being the face value of the equity shares of Tata Communications Limited. 5. Options vested Nil 6. Time within which option may RSUs once vested and confirmed by the NRC shall be be exercised exercisable within a maximum period of 1 (one) year from the date of vesting of the RSUs. 7. Options exercised Nil 8. Money realized by exercise of Not Applicable options 9. The total number of shares Not Applicable arising as a result of exercise of option 10. Options lapsed Nil 11. Variation of terms of options Not Applicable 12. Brief details of significant terms The RSUs shall vest with the employee on the satisfaction of a time-based vesting criteria. The RSUs shall vest not earlier than a minimum period of 1 (one) year and not later than a maximum period of 3 (three) years from the grant date. 13. Subsequent changes or Nil cancellation or exercise of such options 14. Diluted earnings per share Not Applicable pursuant to issue of equity shares on exercise of options 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 India Tel: 91 92289 18171 email: investor.relations@tatacommunications.com CIN: L64200MH1986PLC039266 website: www.tatacommunications.com