Fish pieces are cleaned with salt and vinegar and marinated for minimum 30 minutes Marination masala is prepared as follows.In a pan, saute the savala, ginger,garlic,curry leaves,tomatos with little oil,till the raw smell of savala disappears. Take out from fire and add turmeric powder, chilli powder,pepper powder and salt.Blend everything smooth in a mixie. Marinate the fish and keep aside.