Notification under section 10(23C)(iv) grants tax-exempt recognition to Bangiya Sahitya Parisad for specified assessment years. Notification confers tax-exempt recognition on Bangiya Sahitya Parisad, Calcutta under section 10(23C)(iv) of the Income-tax Act, 1961, the Central Government notifying the society for the specified assessment years, thereby treating it as an entity covered by the exemption provision for the period identified.