In a bowl add turmuric,salt,pepper powder, lime juice,oil mix well then add fish pieces mix well again keep a side.
to make coconut milk, take cocount peel the skin and cut into small pieces and blend into a fine paste then pour one glass of boiling water and keep a side for 30min, then filter and take out the milk.
First in a pan add oil,miranated fish pieces cook for 5 min both the side and keep a side.
In the same pan add oil,murstared,crush some cardamom,ginger,garlic and add, oinion,curry leaves,green chillies,salt, cook for few min then add coriander powder,feenel powder, coconut milk 1/2 the quantity, mix well and bring it boil then add fish pieces if required add salt, then a tamatoes cut, cook for 2min, then add the another 1/2 of coconut milk bring to boil cook for 3min and switch off the flame.
serve with rice.