Slice the shallots.

Chop ginger & green chillies.

Heat oil in an earthen /steel pot.add half of the sliced shallots & fry.when it starts to brown,add the curry leaves & fry.remove the fried shallots & curry leaves from oil & set it aside to garnish.

Add the remaining shallots sliced & chopped ginger & chillies to the oil & sauté.once sautéed,add turmeric & chilli pwdr to this & sauté on medium heat.add 2 tbsp water to this sothat the masalas don't burn.once the oil seperates,add 1/2 cup water to this.

Add the raw mango slices & salt to this.when it starts to boil,add the fish pieces, & cover & cook for 2 minutes.now turn the fish pieces & cover & cook for few minutes.

Now reduce the flame & add the coconut milk.when this starts to boil,turn off the stove & add the set aside fried shallots & curry leaves