A Text Book of Phytochemistry: As per PCI Regulations First Year M. Pharm. (Pharmacognosy) provides a comprehensive understanding of phytochemical principles, natural products, and their therapeutic significance. The book covers the chemistry, classification, extraction, isolation, identification, and evaluation of important phytoconstituents. It presents essential concepts in a clear and systematic manner, with emphasis on pharmaceutical applications and current research developments. Designed in accordance with PCI curriculum requirements, this textbook serves as a useful resource for M.Pharm. students, teachers, researchers, and professionals seeking a strong foundation in phytochemistry and natural product research.