Vatta curry(trevally curry)

Vatta fish 500gm,clean the fish,peel off the skin,cut into desirable size,wash well,keep aside.
Chilly powder 1tblspn,turmeric powder 1/3tspn,fenugreek powder 1/3tspn,bilimbi 9,sliced,
shallots 5,garlic 3cloves,ginger 1inch pc,all three crushed,green chilly 3,slitted,salt to taste,curry leaf 1 sprig.
Mix the ingredients in 2 cups of water,allow to boil,add fish pcs,allow to cook.
Simmer flame,add 1/2 cup coconut milk,allow to bubble,swirl the wok,off flame.
Serve curry after 3 hrs.