Closure of Trading Window for the Quarter ended 30.09.2026

26/09/2026 The Corporate Relationship Department, BSE Limited, 1st Floor, New Trading Ring, Rotunda Building, P.J. Towers, Dalal Street, Fort, Mumbai — 400 001 Dear Sir / Madam, Sub: Closure of Trading Window – Intimation Ref.: Scrip code: 531153; Stock Symbol: Diligent This is to inform you that in terms of the Company’s Code of Conduct framed pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015 and applicable regulatory provisions, the trading window of the Company to deal in equity shares of the Company will be closed from Thursday 01st October, 2026 for the designated employees (and their immediate relatives) and the same shall remain closed till completion of 48 (forty-eight) hours after the declaration of the Un Audited Financial Results of the Company for the Q2nd Quarter (Q2) ending on 30th September, 2026. The date of Board Meeting for declaration of the Un-Audited Financial Results of the Company for the 2nd Quarter (Q2), 2026 – 27, will be intimated in due course. Kindly take this on your record and disseminate to all concerned. Thanking You, Yours Faithfully, For Diligent Industries Limited Bhanu Prakash Vankineni Managing Director DIN: 00919910s