law: Geographical Indications of Goods (Registration and Protection) Act, 1999
  62. Evidence before
  
  Registrar.-
  
  In any proceeding
  
  under this Act before the Registrar, evidence shall be given by affidavit:
  Provided that 
  
  the Registrar may, if he thinks fit, take oral evidence in lieu of, or in
  
  addition to, such evidence by affidavit