Kerala Style Spicy Crawfish/Crayfish Curry

A fabulous spicy seafood concoction of crayfish & Indian spices simmered in coconut milk! Ingredients:Crawfish – 1 kg, boiled Onion -1, finely choppedGreen chilies- 2, finely choppedGinger- 1″ pieceGarlic- 5 podsTomatoes- 2, finely choppedTurmeric powder – 1 tspRed chili powder – 1 tspFish masala powder- 2 tspCoconut milk- 1/2 cupMustard seeds- 1/4 tspSalt – To tasteOil-