DR REDDYS LABORATORIES LTD — Board/Management Information 2023

August 2, 2023

National Stock Exchange of India Ltd. (Stock Code: DRREDDY-EQ) BSE Ltd. (Stock Code: 500124) New York Stock Exchange Inc. (Stock Code: RDY) NSE IFSC Ltd. (Stock Code: DRREDDY)

Dear Sir/Madam,

Ref: Disclosure under Regulation 30 of the SEBI (Listing Obligations & Disclosure Requirements) Regulations, 2015

In continuation to our letter dated July 26, 2023, please find attached a copy of the resignation letter of Mr. Mukesh Rathi resigned from the position of Chief Information Officer of the Company and consequently, has ceased as a Senior Management Personnel of the Company.

This is for your information and records.

Thanking you.

Yours faithfully, For Dr. Reddy's Laboratories Limited

KUMAR RANDHIR SINGH Digitally signed by KUMAR RANDHIR SINGH Date: 2023.08.02 16:26:08 +05'30'

K Randhir Singh Company Secretary, Compliance Officer & Head-CSR

Encl: as above

To,

Dr. Reddy's Laboratories Limited 8-2-337, Road No-3, Banjara Hills, Hyderbabad-Telangana-500034

Sub: Resignation as Chief Information Officer

Dear Sir,

I hereby tender my resignation as the Chief Information Officer as well as Management Council member, w.e.f. August 1, 2023, for pursuing opportunity outside the organization.

I sincerely appreciate the support and guidance I have received during my tenure and I wish the Company a great success in future.

Thanking you,

Yours faithfully,

Mukesh Rathi

Date: 23 $|05|23$ Place: Hyderabad