law: Registration Act, 1908
  33. Power-of-attorney recognizable for purposes of section
  
  32
  (1) For the purposes of section 32, the following
  
  powers-of-attorney shall alone be recognized, namely:-
  (a) if the principal at the time of executing
  
  the power-of-attorney resides in any part of 18[India] in which this Act is for
  
  the time being in force, a power-of-attorney executed before and authenticated
  
  by the Registrar or Sub-Registrar within whose district or sub-district the
  
  principal resides;
  (b) if the principal at the time aforesaid
  
  25[resides in any part of India in which this Act is not in force], a
  
  power-of-attorney executed before and authenticated by any Magistrate;
  (c) if the principal at the time aforesaid
  
  does not reside in 18[India], a power-of-attorney executed before and
  
  authenticated by Notary Public, or any court, Judge, Magistrate, 26[Indian]
  
  Consul or vice-consul, or representative 27[***] of the Central Government:
  PROVIDED that the following persons shall not be
  
  required to attend at any registration-office or court for the purpose of
  
  executing any such power-of-attorney as is mentioned in clauses (a) and (b) of
  
  this section, namely-
  (i) persons who by reason of bodily infirmity are unable without
  
  risk or serious inconvenience so to attend;
  (ii) persons who are in jail under civil or criminal process;
  
  and
  (iii) persons exempt by law from personal appearance in court.
  5[Explanation: In this sub-section "India"
  
  means India, as defined in clause (28) of section 3 of the General Clauses Act,
  
  1897.]
  (2) In the case of every such person the Registrar or
  
  Sub-Registrar or Magistrate, as the case may be, if satisfied that the
  
  power-of-attorney has been voluntarily executed by the person purporting to be
  
  the principal, may attest the same without requiring his personal attendance at
  
  the office or court aforesaid.
  (3) To obtain evidence as to the voluntary nature of the
  
  execution, the Registrar or Sub-Registrar or Magistrate may either himself go
  
  to the house of the person purporting to be the principal, or to the jail in
  
  which he is confined, and examine him, or issue a commission for his
  
  examination.
  (4) Any power-of-attorney mentioned in this section may be
  
  proved by the production of it without further proof when it purports on the
  
  face of it to have been executed before and authenticated by the person or court
  
  hereinbefore mentioned in that behalf.