Further section 13 to the Finance Act, 1950 provided that "if immediately before the 1st day of April, 1950, there is in force in any Part B State other than Jammu and Kashmir or in Manipur, Tripura or Vindhya Pradesh or in the merged territory of Cooch Behar any law relating to income tax or super tax or tax on profits of business, that law shall cease to have effect except for the purposes of the levy, assessment and collection of income tax and super tax in respect of any period not included in the previous year for the purposes of assessment under the Indian Income tax Act, 1922, for the year ending on the 31st day of March, 1951 or for any subsequent year, or, as the case may be, the levy, assessment and collection of the tax on profits of business L/P(D)ISCI 29 898 for any chargeable accounting period ending on or before the 31st day of March, 1949".