When the amount is not paid or deposited as provided in section 18, the authorised officer shall pay the amount ordered by him with interest thereon at the rate of four per centum per annum from the date of expiry of thirty days from the date of the order until it shall have been so paid or deposited.
<span style="margin-left:15px;"></span>When the amount is not paid or deposited as provided in section 18, the authorised officer shall pay the amount ordered by him with interest thereon at the rate of four per centum per annum from the date of expiry of thirty days from the date of the order until it shall have been so paid or deposited.<br>