law: Apprentices Act, 1961
  4. CONTRACT 
  
  OF APPRENTICESHIP. -
  (1) No 
  
  person shall be engaged as an apprentice to undergo apprenticeship training in a 
  
  designated trade unless such person or, if he is a minor, his guardian has 
  
  entered into a contract of apprenticeship with the employer.
  (2) The 
  
  apprenticeship training shall be deemed to have commenced on the date on which 
  
  the contract of apprenticeship has been entered into under sub-section (1).
  
  
  (3) Every 
  
  contract of apprenticeship may contain such terms and conditions as may be 
  
  agreed to by the parties to the contract :
  Provided that no such term or condition shall be inconsistent with any provision of this 
  
  Act or any rule made thereunder.
  (4) Every 
  
  contract of apprenticeship entered into under sub-section (1) shall be sent by 
  
  the employer within such period as may be prescribed to the Apprenticeship 
  
  Adviser for registration.
  (5) The 
  
  Apprenticeship Adviser shall not register a contract of apprenticeship unless he 
  
  is satisfied that the person described as an apprentice in the contract is 
  
  qualified under this Act for being engaged as an apprentice to undergo 
  
  apprenticeship training in the designated trade specified in the contract.
  
  
  (6) Where 
  
  the Central Government, after consulting the Central Apprenticeship Council, 
  
  makes any rule varying the terms and conditions of apprenticeship training of 
  
  any category of apprentices undergoing such training, then, the terms and 
  
  conditions of every contract of apprenticeship relating to that category of 
  
  apprentices and subsisting immediately before the making of such rule shall be 
  
  deemed to have been modified accordingly.