Just as with the aforementioned jaadi, the southerners came up with ambul thiyal as a means of preserving fish, but today, it is the distinctive piquancy that makes the dish come to life in southern household kitchens. Ambul is Sinhalese for sour — a word that describes the dish perfectly well, as its sour relish is the first thing you'd notice as the food touches your tongue. A few different varieties of fish, such as Balaya (Skipjack Tuna), and Kelawalla (Yellowfin Tuna), could be used for the sour fish curry, which is then mixed with a few other authentic spices, such as goraka (Malabar Tamarind), black pepper, ginger, and garlic.