Jaldhaka is a traditional Bengali dish, primarily made with fish, often cooked in a spicy and tangy sauce. It typically features ingredients like mustard oil, green chilies, and a variety of spices, which enhance the flavor of the fish. The dish is popular in the eastern regions of India, especially in West Bengal and Bangladesh. This dish is usually served with steamed rice, making it a staple in many Bengali households. Jaldhaka can be prepared with different types of fish, such as hilsa or rohu, and is cherished for its rich taste and cultural significance in Bengali cuisine.