law: Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 
  
  37.Canteens, etc.- The appropriate Government may, by rules, require the
  
  employer------
  
  
  (a) to provide and maintain in every place wherein not less than two hundred
  
  and fifty building workers are ordinarily employed , a canteen for the use of
  
  the workers;
  (b) to provide such other welfare measures for the benefit of building workers
  
  as may be prescribed.