Dr. Reddy's Laboratories Limited has submitted a certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018. This certificate, received from their Registrar and Share Transfer Agent, M/s. Bigshare Services Private Limited, pertains to the quarter ended March 31, 2026. The certificate confirms that securities received for dematerialization during the aforementioned quarter were processed and confirmed with the depositories. It also states that the securities comprised in these certificates have been listed on the stock exchange where the earlier issued securities are listed. Furthermore, the security certificates received for dematerialization have been mutilated and cancelled after verification, and the depositories have been substituted as the registered owners in the register of members within 15 days. This submission is for the information of the National Stock Exchange of India Ltd. and BSE Limited.