The Business Profits Act, 1947.
18. Ractification of mistakes.-
The Commissioner of Income-tax may, at any time within four
years from the date of any order passed by any Appellate
Assistant Commissioner of Income-tax or Income-tax Officer under this Act,
rectify any mistake in any evidence recorded during assessment or appellate
proceedings, or any mistake apparent from the record and shall within the like
period rectify any mistake apparent from the record which has been brought to
his notice by a person to whose business this Act applies:
Provided that no such rectification shall be made having the effect of
enhancing the liability of any person unless that person has been given a
reasonable opportunity of being heard.