law: The Legal Metrology Act, 2009
  Chapter IV: Verification
  
  and Stamping of Weight or Measure
  24. Verification and
  
  stamping of weight or measure.-
  1.  Every
  
  person having any weight or measure in his possession, custody or control in
  
  circumstances indicating that such weight or measure is being, or is intended
  
  or is likely to be, used by him in any transaction or for protection, shall,
  
  before putting such weight or measure into such use, have such weight or
  
  measure verified at such place and during such hours as the Controller may, by
  
  general or special order, specify in this behalf, on payment of such fees as
  
  may be prescribed.
  2.  The
  
  Central Government may prescribe the kinds of weights and measures for which
  
  the verification is to be done through the Government approved Test Centre.
  3.  The
  
  Government approved Test Centre shall be notified by the Central Government or
  
  the State Government, as the case may be, in such manner, on such terms and
  
  conditions and on payment of such fee as may be prescribed.
  4.    The
  
  Government approved Test Centre shall appoint or engage persons having such
  
  qualifications and experience and collect such fee on such terms and conditions
  
  for the verification of weights and measures specified under sub-section (2) as
  
  may be prescribed.