The highway authority may, after obtaining the. approval Delegation

of the State Government, by notification in the official Gazette, oe ben. delegate any of its powers or duties under sections 7(3), 71(4)10, 20, way autho- 21, 23, 38, 39, 40, 41, 42, or 43 of this. Act to any officer or authority rity. subordinate to it subject to such conditions if any, as may be specified in such notification.