Clarification - Disclosure under Regulation 30 of SEBI (LODR) Regulations, 2015

Dr. Reddy's Laboratories Ltd. 8-2-337, Road No. 3, Banjara Hills Hyderabad – 500 034, Telangana, India CIN: L85195TG1984PLC004507 Tel: + 91 40 4900 2900 Fax: + 91 40 4900 2999 Email: mail@drreddys.com Web: www.drreddys.com November 4, 2026 BSE Surveillance BSE Limited (Scrip Code: 500124) Dear Sir/Madam, Sub: Disclosure pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, (SEBI Listing Regulations) – Clarification sought by stock exchanges on news item appearing in “Media/Publication” Ref: Verification - November 03, 2026 - Dr Reddy's Laboratories Ltd. (500124) This is with reference to your e-mail dated November 3, 2026, seeking clarification from the Company regarding a news article published in First Post https://www.firstpost.com/business/indias-dr-reddys-gets- us-nod-for-40-generic-hiv-prevention-shot-for-120-poorer-countries-14057224.html dated November 3, 2026 captioned “India’s Dr Reddy’s gets US nod for $40 generic HIV prevention shot for 120 poorer countries”. In this connection, we wish to inform that the above captioned news item headline is correct, and the Company clarifies that the above said news pertains to the Company’s press release made on November 2, 2026 titled as “U.S. FDA grants tentative approval for Dr. Reddy’s twice-yearly injectable lenacapavir, advancing access to HIV prevention across 120 countries outside the US.” We would also like to inform you that the above-mentioned matter does not constitute a material event or information requiring disclosure under Regulation 30 of the SEBI Listing Regulations. Please note that the Company, in compliance with Regulation 30 of the SEBI Listing Regulations, makes timely disclosures of all events and information considered material and warrants disclosure under the said Regulations. This is for your information and records. Thanking you, Yours faithfully, For Dr. Reddy’s Laboratories Limited K Randhir Singh Company Secretary, Compliance Officer and Head-CSR