Assessment of tax payable by dealers other than registered dealers.

48. (1) If upon information which has come into his position, the Commissioner is satisfied that any dealer, who has been liable to pay tax under this Act in respect of any period but has failed to get himself registered or has not been registered, the Commissioner shall proceed in such manner as may be prescribed to assess to the best of the assessment the amount of net tax payable by the dealer in respect of such period and, in making such assessment, shall give the dealer a reasonable opportunity of being heard and after making such assessment, the Commissioner shall issue to the dealer a notice in the prescribed form directing him to pay the amount of net tax found to be payable upon such assessment in such manner as may be prescribed.

(2) Where--

(a) the Commissioner upon verification as referred to in sub-section (5) of section 44A is not satisfied that the statement and documents submitted under section 30F by a casual dealer provide correct and complete information, or

(b) the casual dealer has failed to submit the statement and documents referred to in section 30F within the time specified therein, the Commissioner shall proceed in such manner as may be prescribed to assess to the best of his judgment, the amount of tax due from such casual dealer in respect of purchases of sales made by him and in making such assessment, shall give the casual dealer a reasonable opportunity of being heard and after making such assessment, the Commissioner shall issue to the casual dealer a notice in the prescribed form directing him to pay the amount of tax found to be due upon such assessment in such manner as may be prescribed.