The book is a collection of the high-quality research articles presented at International Conference on Computing Systems and Intelligent Applications (ComSIA 2026), organized by Shaheed Rajguru College of Applied Sciences, University of Delhi, India, during March 2026. The book covers state-of-the-art research articles from the researchers and practitioners working in the field of software engineering and automation, intelligent systems, data science and engineering, networks and data communication, internet of things, hardware architecture and communication technologies, cyber security and data privacy, and intelligent systems and automation.