In a deep bowl, marinate the fish finger strips well with salt, lemon juice, turmeric, crushed chili, black pepper, minced garlic, and ginger.
In another deep bowl, mix the white flour, rice flour, corn flour, egg, and baking soda.
Dip the fish fingers into the flour and egg mixture, then into the breadcrumbs.
Arrange the fish fingers on a baking tray lined with parchment paper.
Lightly brush the fish fingers with a little frying oil.
Place the tray in a preheated oven at a medium heat until the fingers are crispy and golden brown.
Serve the fish fingers hot.