Huge quantity of hilsa arrives at Fisheryghat in Chittagong, Bangladesh. Chittagong fish market the largest wholesale market of Hilsha in Bangladesh. Locally known as Ilish, the fish has been designated as the national fish of Bangladesh. Hilsa, always a special delicacy in a Bengali household is prepared in many different ways. It is found in the Bay of Bengal and Padma, Jamuna, Meghna, Karnafully and other coastal rivers of Bangladesh.