This document discusses Kalka Kashaya Kalpana, one of the five fundamental Ayurvedic preparations. It defines Kalka as a soft paste made by grinding fresh herbs, sometimes with a small amount of water. Several examples of Kalka formulations are provided from classical Ayurvedic texts, along with their ingredients, methods of preparation, doses, and indications for treating various diseases. Kalka is considered light and easy to digest, and can be used both internally and externally in the treatment of many health conditions.