9B. Rounding off of tax, etc

The amount of tax, interest, penalty, fine or any other sum payable, and the amount of refund due, under the provisions of this Act shall be rounded off to the nearest rupee and, for this purpose, where such amount contains a part of rupee consisting of paise, then, if such part is fifty paise or more it shall be increased to one rupee and if such part is less than fifty paise, it shall be ignored.

Provided that nothing in this section shall apply for the purpose of collection by a dealer of any amount by way of tax under this Act in respect of any sale by him of goods in the course of inter-state trade or commerce.