Revision jurisdiction clarified for income tax officer orders following inspecting assistant commissioner's directions, with a fixed statutory time limit. The amendment defines an order passed by the Income-tax Officer to include orders of assessment based on directions of an Inspecting Assistant Commissioner and orders made by an Inspecting Assistant Commissioner exercising powers or functions of an Income-tax Officer; it also prescribes that no revision shall be made after the expiry of two years from the end of the financial year in which the order to be revised was passed.