Urad Dal - 1 cup, washed and soaked with 1 tsp of fenugreek in water for at least 4 hours Idli Rice - 4 cups, washed and soaked in water for at least 4 hours Salt Use a wet grinder to grind the soaked Urad Dal until it is smooth and fluffy. Place this batter in a large bowl and set it aside. Next, grind the soaked Idli Rice until smooth and pour it over the Urad batter. Mix the two batters together until they form a uniform, smooth mixture. Let the batter ferment overnight. W