(1) If a notice under section 4 requiring the owner of thebuilding to execute works of improvement is not complied with, thenafter theexpiration of the time specified in the notice the competent authority may itselfdo the works required to be done by the notice.
(2) All expenses incurred by the competent authority under this section, together with interest, at such rate as the State Government may by order fix, from the date when a demand for the expenses is made till payment, may be recovered by the competent authority from the owner of the building as arrears ofland revenue:
Provided that if the owner proves that he-
(a)is receiving the rent merely as agent or trustee for someother person; and
(b)has not in his hands on behalf of that other person sufficient money to satisfy the whole demand of the authority, his liability shall be limited to total amount of the money which he has in his hand as aforesaid.
(3) If the owner of the building is different from the person who owns the land on which the building stand~ and the expenses incurred by the competent authority under this section arc recoverable from both these persons then, expenses shall be recovered from them in such proportion as may be determined by the competent authority or byan officer empowered by it in this behalf.