In a large mixing bowl, combine shredded cabbage, sliced onions, chilies, and grated ginger.
Add salt and let it sit for 10 minutes. The cabbage will release water.
Add spices: turmeric, chili powder, cumin, ajwain, coriander powder.
Add besan and rice flour. Mix well. You may not need to add water—the moisture from cabbage usually binds it.
If the mixture is too dry, sprinkle a few drops of water.
Add a pinch of baking soda (optional) just before frying.
Heat oil in a kadai or deep pan on medium flame.
Take small portions of the mixture and drop them in hot oil. Don’t overcrowd the pan.
Fry until golden and crisp, turning occasionally.
Remove with a slotted spoon and drain on paper towels.