Section 74B(1) in The Delhi Value Added Tax Act, 2004
(1)Notwithstanding anything contained to the contrary in section 34, the Commissioner may, at any time within four years from the end of the year in which any order passed by him has been served, on his own motion, rectify any mistake apparent on record and shall within the said period or thereafter rectify any such mistake which has been brought to his notice within the said period, by any person affected by such order.