Fish Balls Kofta curry

Name: Fish Balls Kofta curry
Ingredients: Any fleshy firm fish -1/4 kg; Onion -3 (cut to thin slices-2 and cut to fine pieces-1); Tomato -3; Olive Oil -3 table spoon; Ginger garlic paste -1 spoon; Coriander leaves -3 table spoon (finely chopped); Chili powder -1 spoon; Pepper powder -1/4 spoon; Garam masala - ¼ spoon; Jeera =1/4 teaspoon; Turmeric powder -1/4 teaspoon; Cashew nuts -1 table spoon; ginger,garlic and green chili chopped -together 1 spoon; all purpose flour - 2 tablespoons; oil to fry balls; salt to taste.