law: Factories Act, 1948 
  34. Excessive weights 
  (1) No person shall be employed in any factory to lift, carry or
  
  move any load so heavy as to be likely to cause him injury.
  (2) The State Government may make rules prescribing the maximum
  
  weights which may be lifted, carried or moved by adult men, adult women,
  
  adolescents and children employed in factories or in any class or description
  
  of factories or in carrying on any specific process.