Closure of trading window for the quarter and half year ending 30th September, 2026.

30th September, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, Bandra Kurla Complex, Mumbai P.J. Towers, Dalal Street , Mumbai Kind Attn: Manager, Listing Department Kind Attn: Manager, Listing Department Stock Code - SONATSOFTW Stock Code - 532221 Dear Sirs/Madam, Sub: Closure of Trading Window for the declaration of Financial Results of Sonata Software Limited (the “Company”) for the quarter and half year ending 30th September, 2026. We hereby inform you that pursuant to Company’s Code of Conduct under the SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended, the Trading Window of the Company shall remain closed from Thursday, 1st October, 2026 till 48 hours after the declaration of financial results of the Company for the quarter and half year ending 30th September, 2026. Please take the same on record. Thanking you, Yours faithfully For Sonata Software Limited Mangal Kulkarni Company Secretary, Compliance Officer and Head Legal Sonata Software Limited - SSL Registered Office: 208, T V Ind ustrial Estate, 2nd Floor, S K Ahire Marg, Worli, Mumbai – 400 030 W: www.sonata-software.com Corporate Office: Tower-A, Sonata Towers, Global Village (Sattva Global City), RVCE Post, Kengeri Hobli, E: info@sonata-software.com Mysore Road, Bengaluru - 560059, India T: +91 80 6778 1000 CIN: L72200MH1994PLC082110