law: Standards of Weights and Measures Act, 1976 
  51. Penalty for
  
  contravention of Sec. 18  . –
  Whoever tampers with,
  
  or alters, in any way, any reference standard, secondary standard, or working
  
  standard except where such alteration is made for the correction of any error
  
  noticed therein on verification, shall be punished with imprisonment for a term
  
  which may extend to two years, or with fine which may extend to five thousand
  
  rupees, or with both.