This is a traditional fish curry originating from Goa. The name literally means sour and spicy. It is usually made with saltwater fish, onions, kokum petals, oil, salt, and a masala paste consisting of Kashmiri chillis, ginger, garlic, onions, tomatoes, cloves, cinnamon, peppercorns, cumin, coriander, turmeric, and tamarind. Name the dish.