Poongar rice aval is a type of flattened rice made from Poongar rice, which is also known as red rice or brown rice. Poongar rice is a traditional variety of rice that is commonly grown in Tamil Nadu, a state in southern India.To make Poongar rice aval, the rice is first parboiled and then flattened into thin, dry flakes. This process of parboiling and flattening helps to preserve the nutrients in the rice and makes it easier to cook and digest.