Exhibit 99.1

May 28, 2025

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: Intimation under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 - Schedule of Analyst / Institutional Investor Meetings

This is to inform that the Company’s management will be participating in the following investor conference with single institution(s)/ investor groups:

Please note that the schedule of the aforesaid meeting is subject to change due to any exigencies on the part of Investors / Company.

This is for your information.

Thanking you.

Yours faithfully,

For Dr. Reddy’s Laboratories Limited

Company Secretary, Compliance Officer & Head-CSR