Record date for the purpose of ascertaining the eligibility of shareholders for payment of 01st Interim dividend, if declared by the Board, will be Friday, 06th November, 2026.

28th October, 2026 To To The General Manager (Listing), The General Manager (Listing), National Stock Exchange of India Limited, BSE Limited, Exchange Plaza, C 1/G Block, Phiroze Jeejeebhoy Towers, Bandra-Kurla Complex, Dalal Street, Mumbai. Bandra (East), Mumbai. Reference: NSE-SCRIP ID: POWERGRID; BSE Scrip Code: 532898 EQ – ISIN INE752E01010 Sub.: Prior Intimation of meeting of Board of Directors of POWERGRID. Dear Sir, In terms of Regulation 29(1)(a) and 50(1)(c) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended, we wish to inform that meeting of Board of Directors of POWERGRID is scheduled to be held on Sunday, 01st November, 2026 to consider and approve, amongst other items of Agenda, the Unaudited Financial Results of the Company for the quarter and half year ended 30th September, 2026 after these results are reviewed by the Audit Committee and the declaration of 1st Interim Dividend out of the profits of the Company for the FY 2026-27, if any. We further wish to inform that pursuant to Regulation 42 of SEBI LODR, the ‘Record Date’ for the purpose of ascertaining the eligibility of the Shareholders for payment of 1st Interim Dividend, if declared, by the Board of Directors, will be Friday, 06th November, 2026. Further, the ‘Trading Window’ of the Company, which has been closed from Wednesday, 30th September, 2026, shall remain closed till Tuesday, 03rd November, 2026 and the ‘Trading Window’ will open on Wednesday, 04th November, 2026. This is for your information and record please. Thanking You, Yours faithfully, (Anjana Luthra) Company Secretary & Compliance Officer 1. National Securities Depository Limited, 3rd Floor, Naman Chamber, Plot C-32, G-Block, Bandra Kurla Complex, Bandra East, Mumbai, Maharashtra - 400051. 2. Central Depository Services (India) Limited, Marathon Futurex, A-Wing, 25th floor, NM Joshi Marg, Lower Parel, Mumbai - 400013. 3. KFin Technologies Limited, Selenium Tower B, Plot 31-32, Gachibowli, Financial District, Nanakramguda, Hyderabad. Corporate Office: “Saudamini”, Plot No. 2, Sector-29, Gurugram-122001, (Haryana) Tel.: 0124-2822999 & 2822000 Registered Office: B-9, Qutab Institutional Area, Katwaria Sarai, New Delhi-110 016. Tel: 011-26560112, 26560115 & 26560193, CIN : L40101DL1989GOI0381 21 Website: www.powergrid.in