law: Trade Marks Act, 1999  
  77. Cancellation or varying of registration of
  
  certification trade mark.- 
  The registrar may, on the application in the
  
  prescribed manner of any person aggrieved and after giving the proprietor an
  
  opportunity of opposing the application, make such order as he thinks fit for
  
  expunging or varying and entry in the registration to a certification trade
  
  mark, on for varying the regulations, on any of the following grounds, namely:-
  
  
  (a) that the proprietor is not longer
  
  competent, in the case of any of the goods or services in respect of which the
  
  mark is registered, to certify those goods or services.
  (b) that the proprietor has failed to observe
  
  any provisions of the regulations to be observed on his part.
  (c) that it is no longer to the public
  
  advantage that if the mark remains registered, the regulations should be
  
  varied.