Appointment of competent authority under section 269B designates Joint/Additional Commissioners with specified territorial jurisdictions effective on publication. Authorizes every Joint Commissioner or Additional Commissioner of Income-tax to perform the functions of a competent authority under section 269B of the Income-tax Act within specified territorial limits, superseding earlier notifications except as to prior acts or omissions, and taking effect from publication; a table assigns each named Range office to its territorial jurisdiction for exercising those functions.