(3)Irrespective of anything contained in sub-section (1) or (2), if in a case falling under section 439, the amount of income in respect of which the penalty is imposed or imposable for the relevant tax year or where such relates to more than one tax year, and aggregate amount of such income or disclosure thereof for such years exceeds ₹500000, the Principal Commissioner or Commissioner shall obtain prior approval from the Principal Chief Commissioner or Chief Commissioner or Principal Director General or Director General, as the case may be, before waiving or reducing the penalty by order referred to in sub-section (1).