Bhujiya extruder is a machine used in the food industry to make a popular Indian snack called bhujiya. Bhujiya is a crispy and savoury snack made from chickpea flour and spices. The extruder machine is designed to extrude the dough through a die of specific shape and size. The dough is prepared by mixing chickpea flour, spices, oil, and water to form a pliable dough. The dough is then fed into the extruder, which forces it through a die under pressure to create long, thin, and crispy strands of bhujiya.