Section 3BB(1) in Karnataka Tax on Entry of Goods Act, 1979
(1)Where any amount is collected by way of tax or purporting to be by way of tax from any person by any dealer in contravention of section 3A, whether knowingly or not, such dealer shall pay the entire amount so collected to the assessing authority within twenty days after the close of the month in which such amount was collected, notwithstanding that the dealer is not liable to pay such amount as tax or that only a part of it is due from him as tax under this Act.