Doda is a high altitude district of Jammu & Kashmir, bestowed by nature with a rich variety of plants which are of potential interest to researchers in pharmacology, chemical sciences, biosciences, analytical sciences, natural product chemistry and others. Herein we have taken an initiative to provide possible and useful literature regarding phytochemistry of plants from the region to the researchers and students. In this book (Volume I) we have presented a brief description about the basic classes of compounds (Flavonoids, quinones, Terpenoids, Saponins, etc) found in some selected plant species. This is followed by the phytochemical methods and techniques utilized by various researchers of natural production chemistry and allied areas. The above section is followed by basic of extraction techniques and main tests for detection of these classes of compounds. Among the techniques, we have thrown some light on the approach and tactics which researchers have utilized while characterizing the extracts