Sambar is a food that is served with Plain rice, Idli, Dosa. It tastes best when served hot. There are different types of Sambar like Aracha sambar or grinded sambar, non-grinded sambar or plain sambar, mor kuzhambu, milagu kuzhambu, vathal kuzhambu, parupu urndai kuzhambu etc. This recipe is for Aracha sambar or grinded sambar. It is a daily food in lot of places in South India. I am using small onions here, you could also use drumstick, raddish, lady finger (okra), white pumpkin etc. I am sharing this for this month's Marathon.