law: Geographical Indications of Goods (Registration and Protection) Act, 1999
  29. Alteration of
  
  registered geographical indications.-
  1.  The
  
  registered proprietor of a geographical indication may apply in the prescribed
  
  manner to the Registrar for leave to add to or alter the geographical
  
  indication in any manner not substantially affecting the identity thereof, and
  
  the Registrar may refuse leave or may grant it on such terms and subject to
  
  such limitations as he may think fit.
  2.  The
  
  Registrar may cause an application under this section to be advertised in the
  
  prescribed manner in any case where it appears to him that it is expedient so
  
  to do, and where he does so, if within the prescribed time from the date of the
  
  advertisement any person gives notice to the Registrar in the prescribed manner
  
  of the opposition to the application, the Registrar shall, after hearing the
  
  parties if so required, decide the matter.
  3.  Where
  
  leave is granted under this section, the geographical indication as altered
  
  shall be advertised in the prescribed manner, unless the application has
  
  already been advertised under sub-section