For preparing raw banana thoran, first cut the raw banana into small pieces. Wash well and drain.
Add salt, turmeric and chilly powder. Add little water and cook.
Keep aside when done.
In a wok or kadai, heat oil and aplutter mustard seeds, whole red chilly, curry leaves, cut onions, green chillies, ginger and then add the cooked raw banana and grated coconut. Saute well.