Wash and soak the chana dal in water for 3 hour. Grind chana dal, Coconut, green chilli, ginger, garlic, cumin seeds together in a blender. Make a very fine paste. Don&39t add water to it. Then add chopped Onion, salt and mix well. Now heat oil in a frying pan. Make small balls and flattern it. Then fry it on medium flame till both sides are light golden brown. Serve hot with tamato sauce and chilli sauce.