Dahi vada/Black Gram dumplings in yogurt

I had some batter remaining after making uzhunnu vada which I decided to make dahi vada. Uzhunnu vada-6 nos Curd-1/4 cup or little less Salt to taste Mustard-1/2 tsp Dry red chilly-2 no(broken to halves) Curry leaves few Oil-1 to 2 tbsp Method Of Preparation: 1. Le..