Dravyaguna vigyana is a branch which deals with the detailed analysis of guna (qualities) and karma (therapeutic actions) of dravya (food and medicine). Department study the fundamental principles of Ayurvedic raw materials with their application and uses. It covers the study of both anatomical and physical aspect of dravya in the form of pharmacognostical study. It also includes modern pharmacology, crude drug study, field study with practical identification and cultivation of medicinal plants