law: Delhi Rent Control Act, 1958 
  32. Revision of fair rate. -
  On a written application from the manager of a
  
  hotel or the owner of a lodging house or otherwise, the Controller may, from
  
  time to time, revise the fair rate to be charged for board, lodging or other
  
  service in a hotel or lodging house, and fix such rate as he may deem fit
  
  having regard to any general rise or fall in the cost of living which may have
  
  occurred after the fixing of fair rate.