Mustard and curd fish is a delicious and tangy dish made with fish fillets marinated in a mixture of mustard paste, curd, and spices. The marinated fish is then cooked to perfection, resulting in a flavorful and creamy dish. This recipe is popular in Bengali cuisine and is often served with steamed rice or roti. The combination of mustard and curd gives the fish a unique and refreshing taste that is sure to impress your taste buds.