Press Release

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 July 13, 2026 National Stock Exchange of India Ltd. (Stock Code: DRREDDY-EQ) BSE Limited (Stock Code: 500124) New York Stock Exchange Inc. (Stock Code: RDY) NSE IFSC Ltd. (Stock Code: DRREDDY) Dear Sir/ Madam, Sub: Intimation of Earnings call Please find enclosed a notification titled “Dr. Reddy's to release Q1FY27 results on Wednesday, July 22nd, 2026; Earnings call slated @19:30 PM IST / 10:00 AM ET.” This is for your information and records. Thanking you. Yours faithfully, For Dr. Reddy’s Laboratories Limited K Randhir Singh Company Secretary, Compliance Officer & Head-CSR Press Release CONTACT DR. REDDY'S LABORATORIES LTD. INVESTOR RELATIONS MEDIA RELATIONS 8-2-337, Road No. 3, Banjara Hills, Hyderabad – 500034, Telangana, India. AISHWARYA SITHARAM SANTOSH VYAS aishwaryasitharam@drreddys.com santoshvyas@drreddys.com Dr. Reddy's to release Q1FY27 results on Wednesday, July 22nd, 2026; Earnings call slated @19:30 PM IST / 10:00 AM ET Hyderabad, India, July 13th, 2026 Dr. Reddy's Laboratories Ltd. (BSE: 500124, NSE: DRREDDY, NYSE: RDY, NSEIFSC: DRREDDY) will announce results for the quarter ended June 30th, 2026 on Wednesday, July 22nd, 2026 after the Board Meeting. Summary of Events Event Date and Time Medium Release of financial results Wednesday, July 22nd, 2026, after Stock Exchange, Media, Company the Board Meeting Website, Email Press Meet Presentation Will be available on the Company’s Stock Exchange, Company’s Website Website www.drreddys.com Earnings Call Wednesday, July 22nd, 2026 at Hosted by the Company 19:30 PM IST / 10:00 AM ET (Details below) Audio as well as Transcript of Will be available on the Company’s Stock Exchange, Company’s the Earnings call Website Website www.drreddys.com Earnings Call Following the release, the management of the Company will host its earnings call to discuss the Company’s financial performance. Pre-register with the link below: https://drreddys.zoom.us/webinar/register/WN_xVkKzh0MSyaxs-eKX8_0wg