This is further to our letter no.SEC/SE/084/2026-27 dated November 03, 2026, intimating the schedule of Earnings Conference Call with Analysts / Investors to be held on Monday, November 09, 2026 at 11.00 am IST. In this regard, please find attached the Investor Presentation towards the same.

SEC/SE/087/2026-27 Chennai, November 07, 2026 To To National Stock Exchange of India Limited BSE Limited Exchange Plaza, Bandra Kurla Complex, 25th Floor, P.J. Towers, Bandra(E), Dalal Street, Mumbai - 400051 Mumbai - 400 001 NSE Symbol- DATAPATTNS Company Code: 543428 Sub: Submission of Investor Presentation for Q2 FY 2026-27 Dear Sir/Madam, This is further to our letters no. SEC/SE/084/2026-27 dated November 03, 2026, intimating the schedule of Earnings Conference Call with Analysts/Investors to be held on Monday, November 09, 2026 at 11.00 A.M. IST. In this regard, please find attached the Investor presentation towards the same. You are requested to take the above on record and oblige. Thanking you For Data Patterns (India) Limited Prakash R Company Secretary and Compliance Officer Membership No. F13620 Encl: As above Data Patterns (India) Limited Investor Presentation / Q2FY27 - November 2026 Table of Content Company Overview Quarter Highlights Journey & Background Outlook Financials Data Patterns : 3 Decades of Expertise Incorporated in 1998 1,137 Engineers as on Sep 2026 (91 people hired in Q2FY27) 31% Revenue and 30% EBITDA CAGR (FY22-26) 73.6% Gross and 25.2% EBITDA Margins (H1FY27) 14.0% ROE and 17.9% ROCE (H1FY27) From Design to Delivery Fully integrated defense and aerospace electronics solution provider with expanding in-house manufacturing Rs 17,236 Mn Order Book as on capabilities across critical defence technologies, including advanced composite structures. Focused on in-house 30th Sep 2026 design prototype testing and qualification, production and manufacturing of high reliability electronics systems Domain expertise in Radars, Electronics Warfare, Communication systems, Avionics, Satellite and Senior personnel associated with Test Equipment. Servicing to the customers such as MOD, DRDO, DPSUs and Private sectors Company for more than 2 decades including international clients Strong Outlook & Positioning Across the Portfolio Existing Successful Demonstrated Potential development Capabilities Opportunities • Focus on Fire Control Radars, X - • Exported Transportable PAR to a • Designed building blocks to complete Band Radars and smaller Radars European Country and Successfully Radar systems in India for UAVs completed Site Acceptance Test (SAT) Radars • Building Blocks in Signal Processing, • RF and IR Seekers for Missiles • 9 Precision Approach Radars Antenna, Transmit/Receive modules, • Complete system and IP Advanced light Fire Control Fire Control successfully delivered and installed helicopter Radar Radar for MIG-29 Radar for Su-30 etc. developed in house. Export to MOD for Army and Navy Potential • Developed state of the art ESM Receivers from 1MHz to 40GHz • Delivered COMINT and ELINT systems Electronic and self protection suit for land, mobile • Both COMINT and ELINT including DF • Requirement across Army, Air Warfare and fighter Reconnaissance aircraft and can be used in Truck Mounted Systems / Force and Navy Radar Warning 5 Channel Search Airborne Software aerostat UAV Based ESM Systems and Jammers Receiver Receiver Defined Radio • Airborne Wide Band Jammer Pods • Developed SDR Platform for • Military Radars, Radio Relays, and • Fighter Aircrafts other sensors. are being procured Communication • Developed systems for land, air under ‘Make in India’ Category • Radio Relay for Airborne Systems and satellite platforms Platforms/UAVs • Requirement across Army, Navy Manpack Airborne VUHF Manpack and Air Force Radio Programmable Software Defined • Land Based Radio Relays Radio Hardware Radio Jammer Pod Strategic Priorities Moving up the Value Chain through Leverage Existing Competencies and Expanding Investments in building Full Systems : Using enables scalability : Creating Geographies Products, Technology reusable building blocks Additional Product Categories and Capex Maximising Make the complete systems Around Rs 190 Cr invested Stakeholder More than Rs 145 Cr from building blocks, on capex in last5 years invested on new product Exported products to Value designed in-house with IP Planning for additional development ; which are at Europe and UK Developing future Rs 150 Cr capex over next advanced stage of readiness ready products two years Concentration on building full Confident on growing its existing Produced and delivered Developing in house technologies products leveraging existing Domain product profile and expects additional Transportable Precision and products for increasing TAM expertise and availability of in-house revenue generation by tapping the larger Approach Radars and Search & building blocks market opportunities from new Track Radars to international Acquisition of ST Advanced developments customers Composites (STAC) strengthens composite manufacturing capabilities supporting radar and next-generation defence systems Focused on delivering Profitable Growth and Strong Cash Generation H1FY27 Overview Revenue Split (%) 0.2% 1.2% 3.9% 3.0% 4.1% 23.1% 46.5% Rs 2,493 Mn Rs 2,493 Mn 29.0% 53.5% 27.8% 7.7% Radar EW AMC Avionics ATE Naval System 1st Qtr 2nd Qtr Service and Others Communication FCS Data Patterns - Outlook Continuing the product development to build full systems to address larger TAM. Build marketing organisation for exports. Build infrastructure to address future contracts. Strong Order Book in Pipeline at Rs 20-40bn over next 24 months. 20-25% Revenue Growth over next two-three years Maintain Net debt free status. Looking forward, we remain committed to maintain a revenue growth rate of 20-25% and EBITDA margins at around 35-40% in FY27. High Returns to Shareholders CMD’s Comment on Quarter Performance The business momentum during H1FY27 has been encouraging, particularly on the order inflow front. We received fresh orders worth Rs. 929 crore in Q2FY27, taking H1FY27 inflows to Rs. 1,046 crore, nearly three times the level recorded in H1FY26. Our current order book, including orders received and negotiated, stands at approximately Rs. 2,698 crore, providing healthy revenue visibility. We are also seeing encouraging opportunities for larger, complete-system contracts across radar, electronic warfare and communication systems, supported by our investments in technology and manufacturing capabilities. Q2FY27 was a more normalised quarter from a revenue perspective, following the exceptionally strong execution in Q2FY26. With several programme milestones progressing and deliveries expected to pick up, we expect H2FY27 to be stronger than H1FY27, supported by our healthy order pipeline and execution momentum. Looking ahead, we remain confident in our business outlook. Strong order inflows, a healthy pipeline and continued progress in execution position us well for the remainder of the year. We remain on track to achieve our full-year targets, and our FY27 guidance remains unchanged. Mr. Srinivasagopalan Rangarajan Promoter, Chairman & Managing Director Q2FY27 Result Highlights Acquired 100% stake in ST 69.0% Advanced Composites Pvt. Rs. 1,332 Mn Gross Margin Ltd. strengthening in-house composite manufacturing Revenue capabilities and vertical integration. 23.6% EBITDA Margin Enhanced infrastructure, Make Rs. 314 Mn 14.0% in India policies, EBITDA Import Bans ROE (H1FY27) 17.9% ROCE (H1FY27) QIP funds utilized for Rs. 4,053 Mn Product Development in Radar, EW, and Cash, Bank & Investment Communication Rs. 17,236 Mn (as on 30th September 2026) system R&D Order Book (H1FY27) Strategic Acquisition To Strengthen Vertical Integration Transaction Snapshot Strategic Financial Impact Enables participation in larger integrated ST Advanced Composites Pvt. Ltd. Revenue Target radar & defence system contracts over the (STAC) Opportunity medium term Stake Acquired 100% Higher in-house manufacturing and value Gross Margin addition could support gradual gross margin improvement Consideration Rs. 10 Cr Better manufacturing control and operating Stac Acquisition EBITDA leverage as scale increases Enables Location [Showing first 8,000 characters — download PDF for full document]