Nadan meen curry (Kerala fish curry in coconut milk)

Ingredients:

Fish - 1/2 Kg
Shallots 5
Green Chillies 4,splitted lengthwise
Chilly Powder 2 tsp
Turmeric  powder 1/2 tsp
Ginger 1 small piece(crushed)
Tomato 1 small
Coconut milk.  - made from 1/4 medium coconut
Kudam puli(Kokum) - 2 pieces
Oil
Salt
Curry leaves 1 spring

Method:
Fry thinly sliced shallots till golden brown in a manchatty (earthern pots).
Add green chillies, ginger, curry leaves and saute.
After 3 mins, add sliced tomato and saute well until smashed well
Now add the powders, and saute till raw smell goes (important!).
Now add coconut milk, salt and kokum.
When boils add fish, simmer the flame and cook for about 20-25 mins/till the fish gets cooked.