1. This is to inform that Indian Register Quality Systems has certified that the Information Security Management Systems (ISMS) of Mazagon Dock Shipbuilders Limited (MDL) has been assessed and found conforming to the Standard ISO/IEC 27001:2013, a press release in this regard is enclosed herewith.\r\n\r\n2. The above information is submitted in terms of Regulation 30 of SEBI (Listing Obligations and Disclosures Requirements) Regulations, 2015.\r\n