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 ...
