law: Copyright Act, 1957 
  58. Right of owner against persons possessing
  
  or dealing with infringing copies  – 
  All infringing copies of any work in which
  
  copyright subsists and all plates used or intended to be used for the
  
  production of such infringing copies shall be deemed to be the property of the
  
  owner of the copyright, who accordingly may take proceedings for the recovery
  
  of possession thereof or in respect of the conversion thereof.
  Provided  that the owner of the copyright shall
  
  not be entitled to any remedy in respect of the conversion of any infringing
  
  copies, if the opponent proves - 
  a. That he was not aware and had not
  
  reasonable ground to believe that copyright subsisted in the work of which such
  
  copies are alleged to be infringing copies; or
  b. That he had reasonable grounds for
  
  believing that such copies or plates do not involve infringement of the
  
  copyright in any work.
  NOTES 
  Infringing copies and price of copies sold can
  
  be recovered by owner of copyright -  Gopal Das v. Jagannath Prasad. AIR 1938 ALL
  
  266.