Income-tax Act, 1961
If any person fails *** to get his accounts audited in respect of any previous year or years relevant to an assessment year or [furnish a report of such audit as required under section 44AB], the [Assessing Officer] may direct that such person shall pay, by way of penalty, a sum equal to one-half per cent of the total sales, turnover or gross receipts, as the case may be, in business, or of the gross receipts in profession, in such previous year or years or a sum of [one hundred fifty thousand rupees], whichever is less.]