law: Hire-Purchase Act, 1972
  3. Hire -Purchase agreements to be in writing
  
  and signed by parties thereto.-
  (1) Every hire-purchase agreement shall be-
  (a) in writing, and
  (b) signed by all the
  
  parties thereto
  (2) A hire-purchase agreement shall be void if
  
  in respect thereof any of the requirements specified in sub-section (1) has not
  
  been complied with
  (3) Where there is a contract of guarantee,
  
  the hire-purchase agreement shall be signed by the surety also, and if the
  
  hire-purchase agreement is not so signed, the hire-purchase agreement shall be
  
  voidable at the option of the owner.