This is to inform you that pursuant to SEBI (prohibition of Insider Trading) Regulations, 2015 as amended, the trading window for dealing in the securities of the company shall remain closed for all designated /connected persons with effect from 01st Oct 2026 until the expiry of (forty-eight) hours from the date of declarations of quarter and half yearly ended, financial results of the company for the period ending 30th September 2026. The date ....

California Software Company Limited CIN: L72300TN1992PLC022135 Registered Office: Prince Infocity I, 12th Floor, Rajiv Gandhi Salai, Kandanchavadi, Perungudi, Chennai 600096 Phone +91 9092053888 Email: investor@calsoftgroup.com, www.calsofts.com September 30, 2026 National Stock Exchange Of India Limited BSE Limited Symbol – CALSOFT Security Code – 532386 Exchange Plaza, Phiroze Jeejeebhoy Towers 5th Floor, Plot No. C/1, G Block Dalal Street Bandra-Kurla Complex Mumbai - 400001 Bandra (East), Mumbai – 400051 Dear Sir/Madam, Sub: Intimation of Closure of Trading Window This is to inform you that pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015 as amended, the Trading Window for dealing in the securities of the Company shall remain closed for all Designated/Connected Persons with effect from 01st October, 2026 until the expiry of 48 (forty eight) hours from the date of declaration of quarter and half year ended, financial results of the Company for the period ending 30th September, 2026. All the Directors, KMP's, Designated Employees, connected persons and their immediate relatives are advised not to deal in the shares of the Company either directly or indirectly during the aforesaid period. The date of Board Meeting for consideration and declaration of the unaudited financial Results for the quarter and half year ended 30th September, 2026 shall be intimated to you separately. Request you to kindly take the same on record. Thanking you. Yours Sincerely, For California Software Company Limited Krishnamoorthy Venkatesan Company Secretary & Compliance Officer