law: Factories Act, 1948 
  49. Welfare officers 
  (1) In every factory wherein five hundred or more workers are
  
  ordinarily employed, the occupier shall employ in the factory such number of
  
  welfare officers as may be prescribed.
  (2) The State Government may prescribe the duties,
  
  qualifications and conditions of service of officers employed under sub-section
  
  (1).