Commissioning of project namely "Transmission system for evacuation of power from REZ in Rajasthan (20 GW) under phase-III Part-C1.

11th 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.: Commissioning of project namely “Transmission system for evacuation of power from REZ in Rajasthan (20 GW) under phase-III Part-C1”. Dear Sir, In terms of Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended, this is to inform that the project namely “Transmission system for evacuation of power from REZ in Rajasthan (20 GW) under phase-III Part-C1” (‘Project’) has been completely commissioned with effect from 22nd September, 2026 for which Notification for Commercial Operation (DOCO) dated 07th October, 2026 has been received via email on 11th October, 2026. The Project was entrusted to POWERGRID Ramgarh II Transmission Limited, then a wholly owned subsidiary of Power Grid Corporation of India Ltd., which is amalgamated with POWERGRID Vataman Transmission Limited w.e.f. 01st March 2026 as per order dated 27th January, 2026 of the Ministry of Corporate Affairs (MCA). This is for your information and record please. 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