The Payment of Wages Act, 1936 (4 of 1936), as in force for the time being, shall apply to motor transport workers engaged in a motor transport undertaking as it applies to wages payable in an industrial establishment as if the said Act had been extended to the payment of wages of such motor transport workers by a notification of the State Government under sub-section (5) of section 1 thereof, and as if a motor transport undertaking were an industrial establishment within the meaning of the said Act.