Urad dal 250 gms( Black gram daal with or without pottu.Soak for 4 hrs ,then wash and remove the pottu, and wet grind in a Blender with very little water)
Oil(for deep frying)
Soak Urad daal for atleast 4 hrs,wash ,drain water, and grind it into paste,it should not be too smooth,with very little amount of Water.Lastly add Salt.Mix all the Chopped Onion pieces,Green chillie pieces,and Ginger pieces.
Then place 2 tbsp of prepared dough on a plastic sheet ,and with wet hane make in to the shape of vada ,and deep fry it in the oil.
Very Tasty when served with Ginger chutney