Trading Window

Central Depository Services (India) Limited CDSL/CS/NSE/RG/2026/145 September 30, 2026 The Manager, Listing Compliance Department, National Stock Exchange of India Limited Exchange Plaza, Bandra Kurla Complex, Bandra (East), Mumbai – 400051. Symbol: CDSL ISIN: INE736A01011 Subject: Notice of Closure of Trading Window. Dear Sir/Madam, This is to inform you that pursuant to the SEBI (Prohibition of Insider Trading) Regulations, 2015 as amended from time to time, and in accordance with the Company’s Code of Conduct for Prohibition of Insider Trading, the trading window for dealing in securities of the Company for all the Designated Persons and their Immediate Relatives shall remain closed from Thursday, October 01, 2026 till the expiry of 48 (forty-eight) hours after dissemination of financial results of the Company for the quarter and half year ended September 30, 2026, to the Stock Exchange. The date of the Board Meeting for the declaration of the financial results for the quarter and half year ended September 30, 2026, shall be intimated in due course. The above information is also available on the website of the Company: www.cdslindia.com This is for your information and records. Thanking you. Yours faithfully, For Central Depository Services (India) Limited Nilay Shah Company Secretary & Compliance Officer ACS No.: A20586 Regd. Office: Marathon Futurex, A Wing, 25th Floor, Mafatlal Mills Compound, N M Joshi Marg, Lower Parel (E), Mumbai - 400 013. Phone: 91-22-2302 3333 • Fax: 91-22-2300 2036 • CIN: L67120MH1997PLC112443 Website: www.cdslindia.com