(b) of sub section (1) of section 4 or to an order refusing an application under section .30 or to an order imposing a penalty under section 15 A or to an assessment made under section 7, 7 A, 7 B, 18 or 21, may within 30 days from the date of service of the copy of the order or notice of assessment, as the case may be, appeal to such authority as may be prescribed; Provided that no appeal against an assessment shall be entertained unless it is accompanied by satisfactory proof of the payment of the amount of tax admitted by the appellant to be due, or of such instalments thereof as may have become payable: Under section 24 of the Act power has been conferred upon the State ,"Government to make rules to carry out the purposes of the Act and in particular, to provide for all matters expressly required or allowed by this Act to be prescribed.