(2)If any such requisition or order or any portion thereof is not complied with within the period specified in the notice under sub-section (1), the Municipal Commissioner or the Executive Officer may, subject to such regulations as may be made by the municipality in this behalf, take such measures, or cause such measures to be taken, as may, in his opinion, be necessary for causing due compliance with such requisition or order, and, except where otherwise expressly provided in this Act or the rules or the regulations made thereunder, the expenses, if any, incurred by such authority or officer in causing such compliance shall be recovered from the person or persons to whom such notice is issued.