Agada Tantra was so highly developed during the early ages and was given the prime importance as one of the eight branches of Ayurveda. Times have changed and advances were made in the science of Toxicology. But Agada Tantra of Ayurveda still continues to serve the rural population especially in cases of Snake- bites etc... as Ayurveda accorded high priority for these types of toxicity and offer various therapeutic measures for detoxification. Though Agada Tantra was given the status of one of the eight main branches of Ayurveda, the subject matter is available in various samhitas in scattered form and very few texts are available on this subject especially in English. Humble effort has been made' in this work to systematically organize the subject matter which was 'scattered throughout the ancient classics. This book has been written more in the interest of Second profession students of BAMS as per the CCIM Syllabus which is common/all over India. I hope it will serve the purpose of better comprehension about the subject and will be appreciated by students, Teachers.