Rasam powder" is an important ingredient in the preparation of rasam, as it adds flavour and fragrance to rasam. It is easy to prepare. Rasam Powder is made with coriander powder, red chilli powder, red gram, black pepper powder, fenugreek powder, and asafoetida and turmeric powder. Rasam is a thin, spicy South Indian dish made with toor dal lentils, tamarind and jaggery (brown sugar). Rasam is generally made using pigeon pea, called toor dal or tuvar dal in Indian language. It is a side dish served as a soup or with plain rice. There are many varieties of rasam, such as plain rasam, Mysore rasam, tomato rasam, lime rasam, pineapple rasam, pepper rasam etc.