Notification under section 10(23C)(iv) confirms a charitable trust's eligibility for statutory tax exemption for specified years. The Central Government, exercising powers under section 10(23C)(iv) of the Income-tax Act, 1961, notifies Swami Sukhdevanand Trust, Rishikesh, as an institution covered by that sub-clause and thereby confirms its entitlement to the provision's tax treatment for the specified assessment years.