Change in Director(s)

Biocon Limited 20th KM, Hosur Road Electronic City Bangalore 560 100, India T 91 80 2808 2808 F 91 80 2852 3423 CIN : L24234KA1978PLC003417 www.biocon.com BIO/SECL/TG/2026-27/43 July 22, 2026 To, To, The Manager The Manager BSE Limited National Stock Exchange of India Limited Department of Corporate Services Corporate Communication Department Phiroze Jeejeebhoy Towers, Exchange Plaza, Bandra Kurla Complex Dalal Street, Mumbai – 400 001 Mumbai – 400 051 Scrip Code - 532523 Scrip Symbol – BIOCON Dear Sir/ Madam, Subject: Completion of tenure of Independent Director Pursuant to Regulation 30 read with Part A of Schedule III of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (‘SEBI Listing Regulations’), we hereby inform that Mr. Bobby Kanubhai Parikh (DIN: 00019437), has completed his second term as an Independent Director and consequently ceased to be a Director of the Company w.e.f. the close of business hours of July 22, 2026. The Board of Directors of the Company places on record their deep appreciation and gratitude to Mr. Bobby Kanubhai Parikh for his extensive contribution and stewardship. Details required under Regulation 30 of the SEBI Listing Regulations read with SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, are enclosed herewith as ‘Annexure The above information will also be available on the website of the Company at www.biocon.com. Kindly take the above information on record and acknowledge. Thanking You, Yours faithfully, For Biocon Limited Rajesh U. Shanoy Company Secretary and Compliance officer ICSI Membership Number: A16328 ANNEXURE A Details as required under the Regulation 30 of the SEBI Listing Regulations read with SEBI Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026: Sl. No. Particulars Details 1. Name Bobby Kanubhai Parikh 2. Reason for change viz. appointment, re- Cessation appointment, resignation, removal, death (Completion of second term as an Independent or otherwise Director) 3. Date of appointment/re- With effect from close of business hours of July appointment/cessation (as applicable) & 22, 2026 term of appointment/re-appointment 4. Brief profile Not Applicable (in case of appointment) 5. Disclosure of relationships between Not Applicable directors (in case of appointment of a director)