Exhibit 99.1

May 28, 2025

To,

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

BSE Limited (Scrip Code: 500124)

New York Stock Exchange Inc. (Stock Code: RDY)

NSE IFSC Ltd (Stock Code: DRREDDY)

Dear Sir/Madam,

Sub: Copy of Newspaper Publication regarding transfer of unclaimed dividend and underlying equity shares to Investor Education and Protection Fund (IEPF)

Please find enclosed a copy of the Notice published on May 28, 2025 in Business Standard and Nava Telangana pertaining to unclaimed dividend and equity shares which are liable to be transferred to the IEPF pursuant to Section 124(6) of the Companies Act, 2013 and rules thereunder.

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

Encl: as above