(1) All moneys payable under this Act, including any interest chargeable thereon and the costs if any, incurred, if not paid when they are due, may be recovered from the recipient of the aid and his sureties, if any, as if they were arrears of land revenue.
(2) When any sum due as aforesaid is paid by the surety or is recovered from him or out of his property under sub-section (1), the Collector may on the application of the surety, so far as possible recover the same from the recipient of the aid as if it were an arrear of land revenue and pay the amount so recovered to the surety.
21. No suit, prosecution or other legal proceeding shall be instituted against any person for anything which is in good faith done or intended to be done under this Act.