1.Firstly, soak dal, rice and soyabean separately in bowls. 2.Add methi seeds and chana dal together in the bowl of urad dal. Soak the rice atleast 5-6 hours. 3.Once soaked, grind all the ingredients together into a thick and consistent paste. Add a little bit of water and grind again. 4.Add the salt and stir well to combine. Cover the bowl and ferment the Batter for at least 6 hours or overnight. 5.Once fermented, mix again. Steam in an idli steamer and serve hot with sambar and nariyal ki chutney alongside.