Heat 1 Tsp oil in a pan and add the chopped onions.
Saute till translucent and add the ginger – garlic paste followed by the chopped tomato.
Saute till the tomato turns soft
Cool and grind into smooth paste by adding little water.
Heat the remaining oil in a pan and add curry leaves followed by the ground paste.
Fry it for a couple of minutes and add turmeric powder followed by chili and coriander powder.
Saute till the raw smell goes off and add half a cup of water along with the required amount of salt.
Cook it for 5 minutes on a medium flame.
Add coconut milk along with water, if needed, and fish pieces
Lower the flame and cook till the fish gets cooked about 5 minutes.
Add the garam masala.
Simmer for a minute and serve hot.