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

March 23, 2020

The Secretary

BSE Limited

National Stock Exchange of India Ltd.

New York Stock Exchange Inc.

Dear Sir/Madam,

Sub : Board Meeting

Pursuant to Regulation 29 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby intimate you that a meeting of the Board of Directors of the Company will be held on Friday, March 27, 2020, inter alia, to consider and approve raising of funds by issuance of Commercial Paper.

This is for your information.

With regards,

/s/ Sandeep Poddar

Sandeep Poddar

Company Secretary