Hingwastak Churna. Natural Ayurvedic Support for Healthy Digestion and Digestive Comfort. Khadi Hingwastak Churna is a traditional Ayurvedic herbal blend made with Hing (Asafoetida), Black Pepper, Long Pepper, Ginger, Cumin, Black Cumin, Ajwain, and Rock Salt. This time-tested formula has been used in Ayurveda for centuries to support healthy digestion, reduce gas and bloating, and promote overall digestive wellness.