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

Web: www.drreddys.com

July 10, 2026

National Stock Exchange of India Ltd. (Stock Code: DRREDDY)

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 conference call conducted on July 9, 2026

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 conference call, conducted on July 9, 2026.

Weblink:

https://www.drreddys.com/cms/sites/default/files/2026-07/GMT20260709-110137_Recording.mp3

This is for your information and records.

Yours faithfully,

For Dr. Reddy’s Laboratories Limited

K Randhir Singh

Company Secretary, Compliance Officer & Head-CSR

DR REDDYS LABORATORIES LTD 6-K