To make this truly crisp dish, firstly, wash fish fillets and cut into 1-2 inch pieces.
Next, take the fish fillets in a bowl. Add salt, lemon juice, egg white (a little), turmeric, ginger-garlic paste and pepper powder and mix well. Sprinkle corn flour and maida and combine well. Refrigerate for 10 mins
Now, heat oil in a pan and fry the batter-coated fish fillets a little at a time till golden brown. Drain and keep aside.
Heat oil in another pan. Add chopped garlic, chopped ginger, curry leaves, green chillies and sauté.
Add coriander powder, garam masala, pepper powder and salt. Combine well. Stir in red chilli sauce, soya sauce and curd. Sprinkle a few coriander leaves.
Add fried fish pieces and toss gently. Remove.
Lastly, drizzle a little lemon juice on top and garnish with coriander leaves.
Serve Apollo Fish with Greek yogurt or tartar sauce.