Letter is attached.

DOC:SEC:1883/2026-27/144 August 6, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, 5th Floor, Plot No. C/1, G- Phiroze Jeejeebhoy Towers, Block, Bandra – Kurla Complex, Bandra Dalal Street, (East), Mumbai – 400 001 Mumbai – 400 051 SCRIP CODE: 500084 SCRIP CODE: CESC Dear Sir/ Madam, Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, read with relevant circulars issued by the Securities and Exchange Board of India, we would like to inform that, Purvah Green Power Private Limited (Purvah), a subsidiary of CESC Limited, has received the Letter of Award (LOA) issued by Solar Energy Corporation of India Limited (“SECI”) to Purvah on August 5, 2026, pursuant to Purvah’s response submitted on the Request for Selection for setting up of 2000 MW ISTS-Connected Wind Power Projects in India under Tariff-Based Competitive Bidding (SECI-Tranche-XX). The details are mentioned in “Annexure-A”. Thanking you. Yours faithfully, For CESC Limited Jagdish Patra Company Secretary & Compliance Officer Annexure-A Sl. Particulars Details 1 Name of the entity awarding the contract Solar Energy Corporation of India Ltd (SECI) 2 Significant terms and conditions of Selection of wind project developer, in terms of the order(s)/contract(s) awarded, in brief; Tariff Guidelines, for setting up of 175 MW Grid- Connected Wind Power Project under Tariff-based Competitive Bidding. 3 Whether order(s) / contract(s) is awarded by Domestic Entity domestic/ international entity 4 Nature of order(s) / contract(s); Power supply from Wind Power Project with 175 MW Capacity. 5 Whether domestic or international; Domestic 6 Time period by which the order(s)/contract(s) 25 years from the scheduled commencement of is to be executed supply date. 7 Broad consideration or size of the Tariff rate of Rs 3.85/kWh. order(s)/contract(s); 8 Whether the promoter/ promoter group / group No companies have any interest in the entity that awarded the order(s)/contract(s)? If yes, nature of interest and details thereof; 9 Whether the order(s)/contract(s) would fall No within related party transactions? If yes, whether the same is done at “arm’s length”.