1. Wash the fish well and fry it lightly to make it firm.
2. Heat oil in a shallow vessel and fry the onions till golden brown.
3. Add the ginger garlic paste, chilly powder, cumin powder, coriander powder, turmeric powder and a little water and fry well for some time.
4. Add the coconut, salt, tamarind juice and some more water and bring to boil.
5. Add the fish and cook for about 6 to 7 minutes till the fish is cooked.
6. Garnish with chopped coriander leaves and slit green chillies.

Recipe courtesy: Anglo-Indian Recipes