Intimation of Closure of Trading Window

Windlas Biotech Limited Reg. Off.: 40/1, Mohabewala Industrial Area Dehradun, Uttarakhand 248 110, India Tel.:+91-135-6608000-30, Fax:+91-135-6608199 Corp. Off.: 705-706, Vatika Professional Point, Sector-66, Golf Course Ext. Road, Gurgaon, Haryana 122 001, India Tel.:+91-124-2821030 CIN-L74899UR2001PLC033407 September 25, 2026 To Listing / Compliance Department Listing / Compliance Department National Stock Exchange of India Limited BSE Limited Exchange Plaza, C-1, Block G Phiroze Jeejeebhoy Towers Bandra Kurla Complex Dalal Street, Mumbai – 400 001 Bandra (E), Mumbai – 400 051 BSE CODE: 543329 NSE SYMBOL: WINDL0AS Dear Sir/ Madam, Sub: Intimation of Closure of Trading Window This is to inform you that as per the Company’s Code of Conduct for Regulating, Monitoring & Reporting of Trading, the Trading Window will be closed for trading in the Company’s securities from October 1, 2026, till the expiry of 48 hours after the unaudited financial results of the Company for the quarter and half year ended September 30, 2026, becomes generally available information. This is for your information and record. Thanking you, Yours faithfully, For Windlas Biotech Limited Ananta Narayan Panda Company Secretary & Compliance Officer www.windlas.com