Payments not to be made unless covered by a budget-grant.

No payment of any sum out of the Municipal Fund shall be made unless the expenditure of the same is covered by a current budget-grant and a sufficient balance of such budget grant is still available notwithstanding any reduction or transfer thereof which may have been made under the provisions of this Act: Provided that this section shall not apply to payments made in the following classes of cases namely:— (a) refund of taxes and other moneys which are authorised under this Act; (b) repayment of moneys belonging to contractors or other persons and held in deposit and of moneys collected or credited to the Municipal Fund by mistake; (c) sums payable in any of the following circumstances— (i) under orders of the Central Government on failure of the Corporation to take any action as required by that Government; or (ii) under any other enactment for the time being in force; or (iii) under the decree or order of a civil or criminal court passed against the Corporation; or (iv) under a compromise of any claim, suit or other legal proceedings; or (v) on account of cost incurred in taking immediate action by the Corporation or any of the municipal authorities to avert a sudden threat of danger to the property of the Corporation or to human life; (d) temporary payments for works urgently required by the Central Government in the public interest; (e) sums payable as compensation under this Act or under any rules, regulations or bye-laws made thereunder; (f) expenses incurred by the Corporation on special measures taken on the outbreak of dangerous diseases.