Take the fish pieces(use thick fleshy fish fillets) in a bowl, add salt, ginger garlic paste, chilly powder, turmeric, mix it well.
Now add the beaten egg, corn starch, all purpose flour, mix this well and deep fry the fish pieces. Keep it aside.
Heat oil in a pan add chopped ginger, garlic, green chilly, curry leaves, chilly paste, coriander powder, salt, soya sauce (optional), curd, crushed pepper powder, chopped coriander leaves. Cook this for sometime, mix well.
Now add the fried fish pieces, toss well and sprinkle the lime juice.
Serve hot as a starter with salad or sauce on side.