law: The Protection of Plant Varieties and Farmers' Rights Act, 2001
  Chapter IV Duration
  
  and Effect of Registration and Benefit Sharing
  24. Issue of
  
  certificate of registration.-
  1.  When
  
  an application for registration of a variety (other than an essentially derived
  
  variety), has been accepted and either-
  a.   the application has
  
  not been opposed and the time of notice of opposition has expired; or
  b.   the application has
  
  been opposed and the opposition has been rejected, the Registrar shall register
  
  the variety.
  1.  
  2.  On
  
  the registration of the variety (other than an essentially derived variety),
  
  the Registrar shall issue to the applicant a certificate of registration in the
  
  prescribed form and sealed with the seal of the Registry and send a copy to the
  
  Authority or determination of benefit sharing and to such other authority, as
  
  may be prescribed, for information. The maximum time required by the Registrar
  
  for issuing the certificate of registration from the date of filing of the
  
  application for registration of a variety shall be such as may be prescribed.
  3.  Where
  
  registration of a variety (other than an essentially derived variety), is not
  
  completed within twelve months from the date of the application by reason of
  
  default on the part of the applicant, the Registrar may, after giving notice to
  
  the applicant in the prescribed manner, treat the application as abandoned
  
  unless it is completed within the time specified in that behalf in the notice.
  4.  The
  
  Registrar may amend the Register or a certificate of registration for the
  
  purpose of correcting a clerical error or an obvious mistake.
  5. The
  
  Registrar shall have power to issue such directions to protect the interests of
  
  a breeder against any abusive act committed by any third party during the
  
  period between filing of application for registration and decision taken by the
  
  Authority on such application.
  6. 
  
    The
  
  certificate of registration issued under this section or sub-section (8) of
  
  section 23 shall be valid for nine years in the case of trees and vines and six
  
  years in the case of other crops and fees as may be fixed by the rules made in
  
  this behalf subject to the condition that the total period of validity shall
  
  not exceed- may be reviewed and renewed for the remaining period n payment of
  
  such
   
  
   i.  
  
    in
  
  the case of trees and vines, eighteen years from the date of registration of
  
  the variety;
  in
  
  the case of extant varieties, fifteen years from the date of the notification
  
  of that variety by the Central Government under section 5 of the Seeds Act,
  
  1966 (54 of 1966); and
   
  
   iii.  
  
    in
  
  the other cases, fifteen years from the date of registration of the variety.