Paani Puri Butter Milk is a refreshing and tangy Indian street food drink made with buttermilk and a blend of spices. It is a popular beverage during the summer season and is known for its cooling and digestive properties. The buttermilk is mixed with a spice mix consisting of roasted cumin powder, black salt, chaat masala, and mint leaves. It is served chilled and can be enjoyed as a thirst-quenching drink or as a digestive after a meal.