_,, , . 1 S.C.R. SUPREME COURT REPORTS 859 it is confined to the process of melting in furnaces; and Ramdhandas (p) saltpetre refineries." v. Similarly by notification of the State Government State of Punja'fJ dated June 1, 1958, the following classes of establishments were exempted from the provisions of ss. 9 Ayyangar ] . and 10: ) "(l) establishments dealing in the retail sale of Phullian, Murmura, sugar-coated grams and Reoris; (2) commercial colleges of shorthand and typewriting. (vide Punjab Government notification No. 6567. S-Lab. 58/1737-RA, dated June 1, 1958.) ( 3) all booking offices of the Transport Services. (vide Punjab Government notification No. 6147/ 5815-C-Lab-58/1741-RA, dated June 1, 1958)." (2) The second category of cases are those covered by the second and third provisos to s. 9. Action has been taken under the third proviso to s. 9, by a notification which was issued at the same time as when the Act was brought into force which runs in the following terms: "The following categories of establishments in the State of Punjab shall not open earlier than eight o'clock in the morning or close later than six o'clock in the evening during the period from 1st May to thirty-first August every year:-· (1) establishments dealing in timber, manufacture - of furniture, tents, supply of furniture or tents on hire, cycles or their repairs, or painting or dyeing; (2) establishments, other than tailoring establishments, which include 'workshops' or other establishments where articles are produced, adapted or manufactured, with a view to their use, transport or sale; and · ·