First of all wash urad dal and moong dal 2 to 3 times.
Then after soak both the dal for 3 to 4 hours.
Drain out water from it.
Now coarsely blend it in mixy and make a smooth batter.
Check out that batter should be very fluffy and light texture wise.

Add salt and green chilli and ginger paste to it.
Now beat the paste for 3 to 5 minutes continuously by adding baking soda to it.
Keep it aside for 10 minutes.
Again stir this batter occasionally.

Now heat the pan.
Add oil to it.
Make medium size vadas and deep fry it on medium flame.
Now drop all the vadas in lukewarm water.
Let it be in water for 10 minutes.

Now squeeze between palms to remove water from wadas.
Arrange it in a plate.
Now take dahi and beat it or whip it continuously till it becomes semi liquid paste(batter).
Now add salt and sugar to it and mix it well.

Take a plate.
Arrange wadas.
Pour dahi on it.
Now garnish it with meetha chutney,green chutney,cumin powder,red chilli powder,coriander leaves,chat masala,pomegranate and cashewnuts.
And enjoy this mouthwatering dish friends.