(1) Notwithstanding anything contained in any of the other provisions of this Act, or in any other law or in any contract of service or other document, no appointment made or promotion, increment in salary, pension or allowance or any other benefit granted to any person by an existing bank ¹*** after the 10th day of February, 1958, and before the appointed day, which would not ordinarily have been made or granted or which would not ordinarily have been admissible under the rules or authorisations of the said banks or of any provident, pension or other fund in force before the 10th day of February, 1958, shall have effect or be payable or claimable from the subsidiary bank concerned, or from any provident, pension or other fund, or from any authority administering any such fund, unless the State Bank has, with the approval of the Reserve Bank, by a general or special order, confirmed the appointment, promotion or increment or has directed the grant of the pension, allowance or other benefit, as the case may be.
     (2) Where any officer or other employee of an existing bank ²*** has received any amount by reason of such appointment, promotion or increment or any such pension, allowance or other benefit as is referred to in sub-section (1), which has not been confirmed or sanctioned by the State Bank under that sub-section, such officer or other employee shall be bound to refund such amount to the subsidiary bank concerned, and that bank shall be entitled to take all such steps as may be necessary for recovering such amount.
     (3) Where any managing director, general manager or manager, deputy managing director or deputy general manager or other employee of an existing bank ³*** has, after the 10th day of February, 1958, and before the appointed day, been paid any sum by way of compensation or gratuity, the subsidiary bank concerned shall be entitled to claim a refund of any sum so paid if the payment is not confirmed by the State Bank by a general or special order.
     (4) Nothing in this section shall apply to, or in relation to, any officer or other employee of the Bank of Patiala, who does not become an officer or other employee of the State Bank of Patiala under the provisions of section 11.