law: Geographical Indications of Goods (Registration and Protection) Act, 1999
  30. Adaptation of
  
  entries in register to amend or substitute classification of goods.-
  1.  The
  
  Registrar shall not make any amendment of the register which would have the
  
  effect of adding any goods or classes of goods to those in respect of which a geographical
  
  indication is registered (whether in one or more classes) immediately before
  
  the amendment is to be made or antedating the registration of a geographical
  
  indication in respect of any goods:
  Provided that 
  
  this sub-section, shall not apply when the Registrar is satisfied that
  
  compliance therewith would involve complexity and that the addition or
  
  antedating, as the case may be, would not affect any substantial quantity of
  
  goods and would not substantially prejudice the rights of any person.
  1.  
  2.  A
  
  proposal so to amend the register shall be brought to the notice of the
  
  registered proprietor and every authorised user of the geographical indication
  
  affected and advertised in the prescribed manner, and may be opposed before the
  
  Registrar by any person aggrieved on the ground that the proposed amendment
  
  contravenes the provisions of sub-section (1).