This book mainly covers the first paper of Dravyaguna Gyanendra Pandey Vijnana. Practical Book of Dravyaguna Vigyan in progress. Sharma Bound: Soft Year of Publishing: 2014. Assistant Professor, Department of Vikriti Vigyan, Faculty of Ayurveda, IMS, BHU. To download DRAVYAGUNA VIGYAN PDF, click on the Download button Aushadhi Vigyan a book which deals in all the medicines that are patented by Charak Pharmaceuticals as well as provide a complete description of each and every medicine. Dravyaguna Vijnyana Ayurvedic Herbs (2 Vols.) by A.P.