Under Explanation (2) to s. 2(hi of the Madras General Sales Tax Act, 1939, a sale is deemed to have taken place in that State, wherever the contract of sale might have been made, if the goods were actually in the State at the time when the contract in respect thereof was made. The Constitution, by Art. 286 as it was originally enacted, imposed four bans upon the legislative power of the States to impose sales tax. Clause (l)(a) prohibited every State from D imj:Josing or authorising the imposition of, a tax on outSide sales. An outsid;e sale was defined by defining an inside sale in the Explanation to the clause, as a sale which shall be deemd to have taken place in the State in which the goods have actually been delivered as a direct result of such sale for the purpose of consumption in that State notwithstandin!I the fact that under the general law relating to sale of goods the property in the goods has by reason of such sale passed in another State. Clause (l)(b) prohibited the imposition of tax on sales in the course of import into or export E out of, the territory of India. Clause (2) prohibited the imposition of tax on the sale of goods \vhere such sale took place in the course of inter-State trade or comn1erce unless Parliament other..·ise provJded. Clause (3) prohitited the State from imposing or authoris- ing the imposition of a tax on the sale of any goods declared by Parliament by law to be essential for the life of the community, unless the legislation vvas reserved for the consideration of the President and had received his assent. This Court, in its judgment in F the Bengal Immunity Co. Ltd. Case, [1955] 2 S.C.R. 603 delivered on September 6. 1955, held that because of Art. 286(2), the State legi- slature could not impose sales-tax on inter-State sales until Parlia~ ment provided otherwise. By the Sales Tax Laws Validation Act, 1956, Parliament removed the ban contained in Art. 286(2) retrospectively, during the period between April !, 1951, and September 6, 1955, with the result that, transactions of sale. even though they were inter-State sales. could, for that period be lawfully charged to tax. [386C-E; 387D, F-H; 388A-D]