law: 6. Amendment of section 6.
  In section 6 of the principal Act,
  (i) in clause (a), for the words "determined by that Council", the word "prescribed" shall be substituted;
  (ii) for clause (aa), the following clause shall be substituted, namely:
  "(aa) in the case of trade apprentices who, having undergone  institutional training in a school or other institution affiliated to or recognised  by a Board or State Council of Technical Education or any other authority  or courses approved under any scheme which the Central Government may, by  notification in the Official Gazette specify in this behalf, have passed the trade  tests or examinations conducted by that Board or State Council or authority or  by any other agency authorised by the Central Government, the period of  apprenticeship training shall be such as may be prescribed;".
  or courses approved under any scheme which the Central Government may, by notification in the Official Gazette specify in this behalf, have passed the trade tests or examinations conducted by that Board or State Council or authority or by any other agency authorised by the Central Government, the period of apprenticeship training shall be such as may be prescribed;".