This book contains s written by young enthusiastic scientists, teachers and researchers who are involved in research, teaching and extension of modern scientific agricultural principles and practices in different parts of India. Attempts have been made to cover various aspects of modern agriculture viz. genetic improvement of crop plants, modern methods in plant breeding, seed science, ground water resources management, integrated farming systems, horticultural crops, biological control for sustainable agriculture, underutilized fruit plants health enhancing foods, role of enzymes in food processing, bioinformatics and molecular diagnostics etc., but still many facets lingering due to vast nature of agriculture itself. The major aim of this book is to provide glimpse of important arena to enhance food and nutritional security in a sustainable way.