Dahi Puri is a popular Indian street food snack that is both tangy and spicy. It is made with crispy puris filled with a mixture of mashed potatoes, chickpeas, and spices. The puris are then topped with yogurt, tamarind chutney, and sev (crispy chickpea flour noodles). Dahi Puri is a perfect combination of flavors and textures, making it a favorite among food lovers.