the State and that notwithstanding that there was an inter-State element involved in the sale, by the goods The Stale of J(erala b Other!'. being moved from Candle Island, the same did not v. affect the power of the delivery State to levy the tax. The Cochin Coal The point urged by the company, that the same sales Co1npany Ltd. had been assessed to tax in Madras State as sales actually taking place there, was also rejected as irrelevant. Ayyangar ]· The respondent-company tihereafter filed an appeal to the Appellate Assistant Commissioner who allowed the appeal of the company holding that the sales were "in tho course of export" within Art .. 286(l)(b), and that even if they were not such but were "inside" sales falling within the Explanation to Art. 286(l)(a) of the Constitution, still a notification by the State Government dated February 5, 1954, exempting such sales fn>m tax, operated for the benefit of the assessee. Thereafter the Deputy Commissioner of sales-tax who was the Revisional authority took up the matter 8UO motu, called upon the assessee to show cause why the appellate order should not be set aside and the entire turnover assessed to. sales-tax as the sales had taken place inside the State only. After hearing the assessee-company the order of the appellate Assistant Commissioner was set aside and that of the Sales Tax Officer restored. The respondent-company then moved the High Court of Travancore-Cochin under Arts. 226 and 227 of the Constitution to set aside the order in revision and the learned Judges of the High Court ordered accordingly. They, however, granted a certificate under Art. 133(1) of the Constitution to enable the State Government to file an appeal to this Court and that is how the matter is now befere us. Though the respondent-company appear to have presented before the High Court several lines of argument in support of their contention that they were entitled to exemption from sales-tax in respect of "bunker coal" trimmed by them into steamers in the waters of Travancore-Cochin, the learned Judges rested their decision in favour of the respondent-company on pra<?tically a single ground. Their reasoning was briefly as follows: Following the Bengal Immunity case ('), the learned Judges held that, the bans (ii [1955] 2 S.C.R. 6o3-