This book presents selected peer reviewed articles from the 3rd International Engineering Research Symposium- IERS 2025, held at Colombo, Sri Lanka, under the theme of "e;Engineering Solutions for Climate Actions, Digital Transformations and Green Industries"e;. It highlights the latest advancements in engineering research, innovations, and technological principles aimed at driving the economy and the industry towards carbon net-zero goals, sustainable development and digital transformation. IERS2025 covers the areas of Chemical and Process Engineering, Climate Change Mitigation & Adaptation, Climate Smart Agriculture, Computer Science, IoT, AI, Cyber Security, Block Chain & Wireless Communication, Electrical, Electronic & Telecommunication Engineering, Energy & Environmental Management, Green Infrastructure & Civil Engineering, Industrial Digitalization and Manufacturing Innovations, Mechanical & Mechatronics Engineering, Water Management & Hydrology and other Engineering discipline relevant to the theme of IERS 2025.
