4[ 13. Every contract and assurance of property on behalf of the Board shall be in writing and executed by the Chief Executive Officer in such manner as may be prescribed and every order or decision of the Board shall be authenticated by the Vice-Chairman or the Chief Executive Officer or such other member or officer as may be authorized by the Board in this behalf. ]
<sup>4</sup>[ 13. Every contract and assurance of property on behalf of the Board shall be in writing and executed by the Chief Executive Officer in such manner as may be prescribed and every order or decision of the Board shall be authenticated by the Vice-Chairman or the Chief Executive Officer or such other member or officer as may be authorized by the Board in this behalf. ]<br>