The book Siddhamantra is a text written by Keshava in around is 13th century A.D. as mentioned in various Dravyaguna texts and also by Prof. P.V. Sharma in the Sanskrit version of the text. This book is itself an index of various medicinally active or food substances that were in vogue during the author's time. Majority of them are being used in various parts of the country and the world even today. The book has a unique method of classification that will help the physician as a ready reference and guide of the medicines to the physician. For making it more relevant in today's world and easy understanding, the best possible identification of the individual substances have been done. Thus it is a modest tryout by the translator to have a well accepted list of substances which will be barred from any regional differences such that the main vision of the author is fulfilled.