law: Factories Act, 1948 
  56. Spreadover 
  The periods of work of an adult worker in a factory shall be so
  
  arranged that inclusive of his intervals for rest under section 55, they shall
  
  not spread over more than ten and a half hours in any day:
  PROVIDED  that the Chief Inspector may, for reasons to
  
  be specified in writing, increase the 74[spread over up to twelve
  
  hours].