Trading Window

GSPL TRANSMISSION LIMITED Regd. Office: GTL Bhavan, E-18, GIDC Electronics Estate, Nr. K-7 Circle, Sector-26, Gandhinagar - 382028, Gujarat, India Tel: +91-79-23268500/600 Website: www.gspltrans.com GTL/S&L/2026-27 7u October, 2026 To, To, The Manager (Listing) The Manager (Listing) The BSE Limited, The National Stock Exchange of India Ltd. Phiroze Jeejeebhoy Towers, "Exchange Plaza", Bandra-Kurla Dalai Street, Mumbai- 400 001 Complex, Bandra (E), Mumbai - 400 051 Scrip Code: 544801 Company Symbol: GSPLTRANS Subject: Regulation 29 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 - Intimation of Board Meeting for consideration of the Un-Audited Financial Results (Standalone & Consolidated) of the Company for the quarter and half-year ended on September, 2026 and Closure of Trading Window as per SEBI (Prohibition of Insider Trading) Regulations, 2015. Respected Sir/ Madam, Pursuant to SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform you that the meeting of the Board of Directors of the Company will be held on 3rd November, 2026, inter-alia to consider the Un-Audited Financial Results (Standalone Consolidated) of the Company for the Quarter and half-year ended on September, 2026. Further, as informed by us vide letter dated September, 2026, the trading window has already been closed from 1s October, 2026 and will remain closed upto 5t November, 2026 (both days inclusive) pursuant to Code of Conduct for Regulating, Monitoring and Reporting of Trading by Designated Person(s) and their Immediate Relatives of the Company for the purpose of announcement of aforesaid Un-Audited Financial Results (Standalone & Consolidated) of the Company for the Quarter and half­ year ended on September, 2026, as may be considered by the Board of Directors. Kindly take the above on your records. Thanking You. Yours Faithfully, For GSPL Transmission Limited, Rajeshwari Sharma Company Secretary CIN: U49300GJ2024SGC153672