Take 5 cups of idli rice and wash it twice to get rid of the dirt. Soak it for 2 hours After 1 hour, take 1 cup of urad dal and wash it twice and soak it for about 1 hour.
After 1 hour, take the bowl of urad dal and grind it using a grinder for about 45 minutes to form a smooth paste. You may add little water to adjust the consistency.
Next, grind the idli rice for about 15 minutes until it forms a fine paste. Once done, take a deep bottomed container, pour in both rice and dal mixtures and add salt to taste.
Now, leave the batter for a minimum 8 hours or keep it overnight for proper fermentation. After 8 hours, mix the batter again before making the idlis.
Next, take an idli vessel and fill it with spoons of batter. Take a small amount of batter with a spoon so as to leave some space to let the idli rise and become fluffy. Once cooked, you can now serve it hot with some coconut chutney.