law: Apprentices Act, 1961
  10. RELATED 
  
  INSTRUCTION OF APPRENTICES. -
  (1) A trade 
  
  apprentice who is undergoing practical training in an establishment shall, 
  
  during the period of practical training, be given a course of related 
  
  instruction (which shall be appropriate to the trade) approved by the Central 
  
  Government in consultation with the Central Apprenticeship Council, with a view 
  
  to giving the trade apprentice such theoretical knowledge as he needs in order 
  
  to become fully qualified as a skilled craftsman.
  (2) Related 
  
  instruction shall be imparted at the cost of the appropriate Government but the 
  
  employer shall, when so required, afford all facilities for imparting such 
  
  instruction.
  (3) Any time 
  
  spent by a trade apprentice in attending classes on related instruction shall be 
  
  treated as part of his paid period of work.
  (4) In the 
  
  case of trade apprentices who, after having undergone a course of institutional 
  
  training, have passed the trade tests conducted by the National Council or have 
  
  passed the trade tests and examinations conducted by a Board or State Council of 
  
  Technical Education or any other authority which the Central Government may, by 
  
  notification in the Official Gazette, specify in this behalf, the related 
  
  instruction may be given on such reduced or modified scale as may be prescribed.
  
  
  (5) Where 
  
  any person has, during his course in a technical institution, become a graduate 
  
  or technician apprentice, technician (vocational) apprentice and during his 
  
  apprenticeship training he has to receive related instruction, then, the 
  
  employer shall release such person from practical training to receive the 
  
  related instruction in such institution, for such period as may be specified by 
  
  the Central Apprenticeship Adviser or by any other person not below the rank of 
  
  an Assistant Apprenticeship Adviser authorized by the Central Apprenticeship 
  
  Adviser in writing in this behalf.