Biocon Ltd. — Capital/Financing Update 2025

Sep 28, 2025

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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/EA/2025-26/97

September 28, 2025

To, To, The Secretary The Secretary 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 – 400 050 Scrip Code – 532523 Scrip Symbol - Biocon

Dear Sir/ Madam,

Subject: Intimation pursuant to Regulation 29(1)(h) of SEBI Listing Regulations.

Pursuant to Regulation 29(1)(h) of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”), we hereby inform you that it is proposed to consider early redemption of 1,07,000 (One Lakh Seven Thousand) unlisted, secured, rated, redeemable, Non-Convertible Debentures (NCDs) of face value of INR 1,00,000/- (Rupees One Lakh only) each, issued and allotted by the Company on private placement basis on February 21, 2023, subject to approval of the Board of Directors of the Company proposed to be sought on October 01, 2025, and receipt of necessary approvals, on such date as may be determined by the Company.

The above-mentioned 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,

For Biocon Limited

MUKESH Digitally signed by MUKESH KATAPADI KATAPADI KAMATH Date: 2025.09.28 KAMATH 23:14:57 +05'30' _______________

Mukesh Kamath

Interim Chief Financial Officer