Composed of three metals, such as copper, zinc, and tin, each of which, according to Ayurveda, has unique therapeutic benefits. Aids in removing toxins The Ayurvedic foot massage treatment Kansa Vatki is a wonderfully soothing method that helps to harmonize the body, mind, and spirit. The first step in this remarkable ancient treatment is to wash the feet. Following are some soothing, passive movements of the foot.