Investment approved by the committee of directors on investments on projects.

05th August, 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.: Investment approval by ‘Committee of Directors on Investment on Projects’ of POWERGRID. Dear Sir, In terms of Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended, we wish to inform that ‘Committee of Directors on Investment on Projects’ of POWERGRID, in its meeting held today i.e. Wednesday, 05th August, 2026, has accorded investment approval for the project namely “Reconductoring of Tirunelveli – Udumalpet and Pugalur - Madurai 400kV D/c lines with HTLS conductor” to be booked under Additional Capital Expenditure” at an estimated cost of ₹856.94 Crore scheduled to be commissioned within 24 months from the date of allocation of project i.e. by 11.02.2028. Thanking You, Yours faithfully, (Anjana Luthra) Company Secretary & Compliance Officer के(cid:574)ीय काया(cid:330)लय: "सौदािमनी", (cid:600)ॉट नंबर 2, से(cid:387)र -29, गु(cid:348)(cid:356)ाम -122001, (ह(cid:303)रयाणा) दूरभाष: 0124-2822999 & 2822000 Corporate Office: “Saudamini”, Plot No. 2, Sector-29, Gurugram-122001, (Haryana) Tel.: 0124-2822999 & 2822000 पंजीकृत काया(cid:330)लय: बी -9, कुतुब इं(cid:720)ी(cid:488)ूशनल ए(cid:303)रया, कटवा(cid:303)रया सराय, नई िद(cid:671)ी -110 016. दूरभाष: 011-26560112, 26560115 & 26560193, CIN: L40101DL1989GOI038121 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