Peel the skin of raw banana using a peeler or a knife.
Wash and cut them into Circles of medium size. (Neither too thick nor too thin.) ( Check note 1). So that it gets cooked evenly.
Now transfer them to a bowl and add the chili powder, coriander powder, turmeric, salt and mix them by sprinkling little water, so that Masala coats well.
Now add the rice flour and again mix well. Let them rest for 10 to 15 minutes.
In a heavy bottom pan, add oil and when it is hot, add mustard seeds, urud dal and cumin seeds. Fry for a minute.
When mustard splitters, and the curry leaves and again fry for a while.
Now add the banana and start frying them.
Sprinkle little water for banana to cook. Cover and cook for 5 min.
If needed, add one more tablespoon of oil and fry them again.
Serve them with hot sambar rice.
Vaazhaikkai varuval | Raw Banana Fry is ready.