Community Health Nursing-I is a comprehensive textbook designed as per INC guidelines for B.Sc. Nursing students. This book provides a strong foundation in community health concepts, public health systems, and nursing practices essential for effective healthcare delivery. It covers a wide range of topics including community health nursing principles, environmental health, nutrition, epidemiology, communicable and non-communicable diseases, and national health programs. The content is structured in a simple and student-friendly manner, making it easy to understand complex concepts. The book also emphasizes practical aspects such as health promotion, disease prevention, community participation, and the role of nurses in improving public health outcomes. It serves as an essential academic resource for nursing students, educators, and healthcare professionals.