Exhibit 99.1

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 www.drreddys.com

November 5, 2024

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: Audio Recording of the Earnings call conducted on November 5, 2024

Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, please find below the link of the audio recording of the Earnings call for the quarter and half-year ended September 30, 2024, conducted on November 5, 2024.

Weblink:https://www.drreddys.com/cms/cms/sites/default/files/2024-11/Q2%20FY25%20Earnings%20Call%20Audio.mp3

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