Key Event: Resignation of Auditors

B S R & Co. LLP, Chartered Accountants (Firm Registration No. 101248W/W100022), tendered their resignation as the Statutory Auditors of Biocon Biologics Limited. The resignation was submitted via a letter dated August 06, 2026, and was received by BBL at 4:40 p.m. on the same day. The resignation is effective immediately.

Reason for Resignation

The stated reason for the resignation is to align the Statutory Auditors of the material subsidiary (BBL) with the Statutory Auditors of the holding company, Biocon Limited. This alignment is necessitated by the mandatory rotation of B S R & Co. LLP as the Statutory Auditors of Biocon Limited under the Companies Act, 2013.

Details of Auditor's Tenure and Work

B S R & Co. LLP was appointed as BBL's Statutory Auditors pursuant to a shareholder's resolution dated July 26, 2022. Their term was scheduled to last until the conclusion of the 11th Annual General Meeting after the financial year ending March 31, 2027.

The auditor confirmed they have completed the statutory audit for the financial year ended March 31, 2026, and issued their audit report on May 07, 2026. They also completed the limited review for the quarter ended June 30, 2026, and issued that report on August 05, 2026.

Financial Impact

No financial impact is quantified or discussed in the disclosure. The change is presented as an administrative alignment.