4. Reduction in Tax Liability.
(1) Where an importer of motor vehicle liable to pay tax under sub-section (3) of section 3 being a Dealer in motor vehicles becomes liable to pay tax under the Sales Tax Act by virtue of sale of such motor vehicles then his liability under the Sales Tax Act shall be reduced to the extent of tax paid under this Act.
Explanation.
(2) When an importer or manufacturer of goods specified in part-III of the schedule except motor vehicles pays tax under sub-section (1) of section 3 or section 26 of this Act, being a Dealer under the Sales Tax Act becomes liable to pay tax under the said Act by virtue of sale of such goods then his liability under the Sales Tax Act shall be reduced to the extent of tax paid under this Act.
(3) The reduction in tax liability of an importer as provided in sub section (1) or of an importer or manufacturer as provided in sub-section (2) shall not be allowed, unless the entry tax paid, and tax payable under the Sales Tax Act are shown separately in the cash memo or the bill or invoice issued by him for the sale by virtue of which such liability accrues.