law: Registration Act, 1908
  36. Procedure where appearance of executant or witness is
  
  desired
  If any person presenting any document for registration or
  
  claiming under any document, which is capable of being so presented, desires
  
  the appearance of any person whose presence or testimony is necessary for the
  
  registration of such document, the registering officer may, in his discretion,
  
  call upon such officer or court as the State Government directs in this behalf
  
  to issue a summons requiring him to appear at the registration-office, either
  
  in person or by duly authorized agent, as in the summons may be mentioned, and
  
  at a time named therein.