in a large mixing bowl take 6 slices of any bread and crumble them into small pieces.
next, add rice flour, rava, curd. also add cumin seeds, onion, ginger, curry leaves, coriander leaves and salt.
mix all the ingredients and form a soft dough. if you feel the dough is dry, you can add 1 to 2 tsp of curd to make it smooth dough.
now make a small ball and gently press to flatten. then slowly create a hole in the centre like you prepare in medu vada.bread vada
deep fry the vadas slowly on medium flame.
fry on both sides till they turn golden brown. drain on paper towel to remove excess oil.