137. (1) Where an assessee is in default or is deemed to be in default in making payment of tax, the Deputy Commissioner of Taxes may direct that, in addition to the amount of tax in arrears, a sum not exceeding that amount shall be recovered from the assessee by way of penalty. (2) Where, as a result of any final order, the amount of tax, with respect to the default in the payment of which the penalty was levied, has been wholly reduced, the penalty levied shall be cancelled and the amount of penalty paid shall be refunded.