Resignation of Mr. Vivek Dhariwal (DIN: 02826679), Independent Director of the Company, with effect from close of business hours on October 12, 2026

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 October 13, 2026 Listing / Compliance Department BSE Limited Phiroze Jeejeebhoy Towers Dalal Street, Mumbai – 400 001 BSE CODE: 543329 Dear Sir/ Madam, Sub: Intimation of change in the composition of the Board in terms of Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 This is continuation of our earlier disclosure dated October 12, 2026, regarding the resignation of Mr. Vivek Dhariwal (DIN: 02826679), Independent Director of the Company, with effect from close of business hours on October 12, 2026. Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements), Regulations, 2015 (‘Listing Regulations’), we wish to inform you that Mr. Vivek Dhariwal (DIN: 02826679), has tendered his resignation as the Independent Director of the Company, with effect from close of business hours on October 12, 2026, citing personal reasons and prior commitments. Consequently, he shall also cease to be the Chairman of the Board and Member of the Nomination and Remuneration Committee and Corporate Social Responsibility Committee of the Company. The details for the aforesaid change in directorate as required under SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI Master Circular Ref: HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, for the resignation of Mr. Vivek Dhariwal are attached as Annexure I. The letter of resignation received from Mr. Vivek Dhariwal is enclosed as Annexure II. 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 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 Annexure I Details as per the requirement of Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, read with SEBI Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 Sr. Particulars Details 1. Reason for change viz. appointment/ re- Resignation of Mr. Vivek Dhariwal (DIN: 02826679) , appointment/ resignation Independent Director of the Company due to personal reasons and prior commitments. 2. Date of appointment/ cessation With effect from close of business hours on October 12, 2026 3. Brief profile (in case of appointment/ re- Not Applicable appointment); 4 Disclosure of relationships between Not Applicable directors (in case of appointment of a director) Additional Information in case of resignation of an Independent Director 5 Letter of Resignation along with detailed Enclosed as Annexure II reasons for resignation 6 Name of the listed entities in which the Directorships in Listed Companies: NIL resigning director holds directorships indicating the category of directorship Committee Memberships: NIL and membership of the Board Committees, if any. 7 The independent director shall along with Mr. Vivek Dhariwal (DIN: 02826679) has confirmed that the detailed reasons also provide a there are no material reasons for his resignation other than confirmation that there is no other those stated in his resignation letter. material reasons other than those provided. www.windlas.com Date: October 12, 2026 The Board of Directors Windlas Biotech Limited 40/1, Mohabewala Industrial Area, Dehradun -248 110 Uttarakhand, India Dear Sir/ Madam, Subject: Resignation from the Directorship of the Company I, Vivek Dhariwal (DIN: 02826679), hereby tender my resignation from the office of Independent Director of Windlas Biotech Limited (“the Company”) with effect from close of business hours on October 12, 2026, due to my personal reasons and prior commitments. Consequently, I will be stepping down from membership of Nomination and Remuneration Committee and Corporate Social Responsibility Committee of the Company. I further confirm that the reason stated above is the only reason for my resignation and there are no other material reasons for my resignation. I take this opportunity to thank the Board and other Committee members for the support extended to me during my tenure as Independent Director and Chairman of the Board of Directors of the Company. I wish the Company, the Board, and the management team continued success and my best wishes in all future endeavors. Thanking you, Yours faithfully. Vivek Dhariwal DIN: 02826679