(3) If any person so ordered fails without sufficient cause to comply with the order, any such Magistrate may, for every breach of the order, issue a warrant for levying the amount due in the manner provided for levying fines, and may sentence such person, for the whole or any part of each month' s allowances remaining unpaid after the execution of the warrant, to imprisonment for a term which may extend to one month or until payment if sooner made: Provided that no warrant shall be issued for the recovery of any amount due under this section unless application be made to the Court to levy such amount within a period of one year from the date on which it became due: Provided further that if such person offers to maintain his wife on condition of her living with him, and she refuses to live with him, such Magistrate may consider any grounds of refusal stated by her, and may make an order under this section notwithstanding such offer, if he is satisfied that there is just ground for so doing. Explanation.- If a husband has contracted marriage with another woman or keeps a mistress, it shall be considered to be just ground for his wife' s refusal to live with him.