1 cup soaks urad dal for 5 hours.
Drain the water and put it in a mixer or grinder. Also, add 1 chilli and ginger.
Make a smooth paste, adding water as required. Try to add the minimum amount of water to prevent the batter from becoming watery.
Take out the urad dal batter in a big bowl.
Add ¼ cup-soaked moong dal to the blender.
Blend to make a smooth paste and add to the same bowl of Urad dal batter
Now add 1 teaspoon salt and mix well using a whisk.
Prepare the thick batter the batter is thin, add one tablespoon of rice flour to it.
Now drop one spoonful of batter into the hot oil using a wet spoon or hands.
Keep the flame medium; keep stirring occasionally.
Fry the Vada until it becomes golden brown and crisp.
Take out the Vada on kitchen paper to remove excess oil.
Now, take 5 cups of hot water in a big bowl.
Add ½ tsp salt and ¼t sp asafoetida. And mix it properly.
Now put the hot fried Vada in water and submerge completely.
Soak for 5 or 10 minutes or until the Vada absorbs the water.
After 10 minutes, squeeze outthe water and take it out on a plate.