Topse fish batter fry is a popular Bengali dish made with fresh topse fish fillets coated in a flavorful batter and deep-fried until crispy. The fish fillets are marinated in a mixture of spices, ginger-garlic paste, and lemon juice to enhance the flavor. The batter is made with besan (gram flour), rice flour, and a blend of spices. The crispy and golden brown fish fillets are served hot as an appetizer or as a side dish with rice and dal.