Disclosure attached.

Ref. No.: 01:SEC:LA:1 Dated: 22nd September 2026 BSE Limited (BSE) National Stock Exchange of India Limited (NSE) Department of Corporate Services, Listing Department, Floor 25, PJ Towers, Dalal Street, Exchange Plaza, Bandra-Kurla Complex, Bandra (E), Mumbai-400 001 Mumbai-400 051 25वी ंमंिजल, पी. जे. टावस(cid:330), दलाल (cid:720)(cid:332)ीट, मुंबई – 400001 ए(cid:411)च(cid:336)ज (cid:600)ाज़ा, बां(cid:363)ा-कु ला(cid:330) कॉ(cid:817)(cid:600)े(cid:411), बां(cid:363)ा (पूव(cid:330)), मुंबई-400 051 Scrip Code: 532555 Symbol: NTPC ISIN: INE733E01010 Subject: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, Please find attached herewith disclosures dated 21st September 2026, made by our subsidiary, NTPC Green Energy Limited (NGEL) regarding declaration of Commercial Operation of following projects of NTPC Renewable Energy Limited, a stepdown subsidiary of NTPC Limited through NGEL: i. Fourth part capacity of 6.3 MW of Vanki Wind Energy Project at Nakhatrana, Kutch, Gujarat, out of 1050 MW of wind component under 500 MW REMCL RTC Project w.e.f. 00:00 hrs. of 22nd September 2026. ii. First part capacity of 50.4 MW of Jamjodhpur Wind Energy Project at Jamnagar, Gujarat, out of 1050 MW of wind component under 500 MW REMCL RTC Project w.e.f. 00:00 hrs. of 22nd September 2026. With this, the total installed capacity of NTPC group stands at 91,221 MW and commercial capacity at 90,141 This is for your information and record. Thanking you/ ध(cid:586)वाद, Yours faithfully/ भवदीया, (Ritu Arora)/ ((cid:303)रतु अरोड़ा) Company Secretary & Compliance Officer/ Encl.: as above पंजीकृत काया(cid:91)लय : एनट(cid:547)पीसी भवन, (cid:232)कोप का(cid:224)पल(cid:200)ै स, 7, इ(cid:232)ं ट(cid:547)(cid:618)यूशनल ए(cid:464)रया, लोधी रोड, नई (cid:465)द(cid:227)ल(cid:547) – 110003 काप(cid:574)रेट पहचान न(cid:224)बर : L40101DL1975GOI007966, टेल(cid:547)फोन नं. : 011-24387333 फै(cid:200)स नं. : 011-24361018, ईमले : ntpccc@ntpc.co.in वेबसाइट: www.ntpc.co.in Registered Office: NTPC Bhawan, SCOPE Complex, 7 Institutional Area, Lodi Road, New Delhi – 110003 Corporate Identification Number: L40101DL1975GOI007966, Telephone No.: 011-24387333, Fax No.: 011-24361018, E-Mail: ntpccc@ntpc.co.in Website: www.ntpc.co.in