Emerging Trends in Applied Research (Volume - 4), edited by Dr. Iqbal Singh Chauhan, presents a multidisciplinary collection of research exploring challenges and innovations across social science, law, food safety, environmental engineering, and anthropology. The volume features diverse studies, including unemployment trends in South Indian states, zoonotic parasitic infections in rhesus macaques, legal service transformation via artificial intelligence, and biological food hazards. It also explores bruxism in ancient populations and the impact of oxy-hydrogen gas on emission characteristics in multi-fuel engines. Each chapter reflects a commitment to applied, evidence-based solutions for both regional and global concerns. This volume is a valuable resource for academicians, policy researchers, and interdisciplinary scholars seeking to understand the intersections of technology, health, and society through a practical research lens.