Amendment of section 6

To section 6 of the Principal Act, the following proviso shall be added, namely :- " Provided that if the lumpsum tax under this Act has not been paid, the registered owner or the person having possession or control thereof shall, in addition to payment of the tax due, be liable to penalty which may extend to twice the lumpsum tax payable under clause

1. (aa) of sub-section

1. (1) of section 4.".