The Customs Act, 1962
154. CORRECTION OF CLERICAL ERRORS, ETC. –
Clerical or arithmetical mistakes in any decision or order passed by the Central Government, the Board or any officer of customs under this Act, or errors arising therein from any accidental slip or omission may, at any time, be corrected by the Central Government, the Board or such officer of customs or the successor in office of such officer, as the case may be.