Take a blender add in all the masala powders,ginger garlic paste, tamarind, and grated coconut.. add little water& grind to a smooth paste.. fish masala is ready

Heat up oil in a deep sauce pan, add in chopped onions and curry leaves.. saute it for 3-4 minutes.. now add ground masala paste.. saute again nicely for 3-4 minutes,

Add required amount of water and salt.. consistency should be medium thick, boil it for another 6-7 minutes or until raw smell of masala evaporates..

Now add in cleaned fish pieces..boil curry for 5-6 minutes or until fish is cooked.. serve with hot with rice.. enjoy your yummy fish curry rice....