This book contains the proceedings of the International Conference on Ground Engineering and Sustainable Infrastructure (ICGESI-2026), held on April 3-4, 2026, at National Institute of Technology Hamirpur, India. It presents the expertise of scientists and engineers in academia and industry in the field of geotechnical engineering and infrastructure development. The book explores cutting-edge research on advanced materials in geotechnical engineering and construction materials including high-performance materials, cementitious composites, sustainable materials, non-metallic reinforcement, nanomaterials, self-healing materials, etc. Innovative research in structural composites, ground improvements, the effects of climate change on geotechnical and structural engineering, sustainable design and construction in these fields, and techniques for stabilizing soil and improving ground are also covered in the book. It also covers sophisticated case studies in structural retrofitting and geotechnical solutions, as well as the most recent and cutting-edge methods in foundation and construction engineering, integrated design approaches in geotechnics and structural synergy, challenges and advancements in soil-structure interaction, geotechnical challenges in urban infrastructure development, seismic design and resilient infrastructure, and more. This book caters to academics, researchers, industrial practitioners, policymakers who are interested in sustainable development as an indispensable trend in these fields.