As a plain reading of the above statutory provisions would show, the lapse, referred to in section 140A(1), is the failure “to pay such (admitted) tax together with interest payable under any provision of this Act for any delay in furnishing the return or any default or delay in payment of advance tax, before furnishing the return” and the lapses punishable under section 221(1) are the lapses in respect of “default in making a payment of tax”. The default triggering the penal liability under section 221(1) is the default in making payment of tax, and that the default in payment is tax is with reference to the filing of the income tax return. Viewed thus, default is committed at the point of time when a return of income is filed without making payment of the admitted tax liability. Clearly, therefore, the assessee committed a default in not paying the admitted tax liability when it filed the original income tax return, without payment of admitted tax liability, on 30th September 2008. To this extent, there is no dispute or ambiguity at all.The question then arises as to what is the impact of filing a revised income tax return