This book presents select proceedings of the First Indo-Japan Textile Research Conference (IJTRC 2023) and provides a comprehensive exploration of the transformative field of multifunctional composites in materials engineering. The book covers a wide range of topics such as 3D woven composites, honeycomb composites, woven spacer composites, and textile structural composites. It showcases the remarkable potential of these materials in various industries ranging from automotive to aerospace and from building construction to marine. It also addresses important aspects such as textile waste management, electromagnetic passivity, and fire resistance. This book serves as a valuable resource for researchers, postgraduate students, and professionals interested in staying at the forefront of multifunctional composite materials.