Mor Rasam, also known as buttermilk rasam, is a refreshing and tangy South Indian soup made with buttermilk and spices. It is a light and flavorful dish that is perfect for hot summer days. The buttermilk is seasoned with a blend of spices and tempered with mustard seeds, curry leaves, and asafoetida. This rasam can be enjoyed as a soup or served with rice as a part of a meal. It is a comforting and soothing dish that is sure to satisfy your taste buds.