Idli Sambar is one of the most healthy and light Street food. A soft and fluffy rice cake made by steaming a batter consisting of fermented rice and lentils, Idli and the Sambar is a lentil-based curry made with vegetables with the topping of seasoning and tamarind. A savory Street food breakfast originating in Tamil Nadu is also a popular cuisine in South India. While walking in the streets of Tamil Nadu, one can easily find vendors selling Idli Sambar.