The Legal Metrology Act, 2009

26. Penalty for alteration of weight and measure.-

tampers with, or alters in any way, any reference standard, secondary standard or working standard or increases or decreases or alters any weight or measure with a view to deceiving any person or knowing or having reason to believe that any person is likely to be deceived thereby, except where such alteration is made for the correction of any error noticed therein on verification, shall be punished with fine which may extend to fifty thousand rupees and for the second and subsequent offence with imprisonment for a term which shall not be less than six months but which may extend to one year or with fine or with both.