law: The Collection of Statistics Act, 2008
  5. Power of
  
  statistics officer to call for information. -
  The statistics
  
  officer may, for the purpose of collection of statistics on any specified
  
  subject in any geographical unit for which the said officer was appointed-
  a.  
  
    serve
  
  or cause to be served on any informant a notice in writing asking him to
  
  furnish the information specified under sub-section (5) of section 4 or cause a
  
  information schedule to be given to any informant for the purpose of its being
  
  filled up; or
  b.  
  
    cause
  
  all questions relating to the subject to be asked from any informant; or
  c.  
  
    seek
  
  information through tele fax or telephone or e-mail or in any other electronic
  
  mode or in a combination of different modes for different sets of information
  
  so specified.