law: Standards of Weights and Measures (Enforcement) Act, 1985
  35. Sale by heaps.-
  1.  Where
  
  any commodity is sold by heaps, the approximate weight, measure or number of
  
  the commodity contained in each heap shall be conspicuously announced by the
  
  seller or his agent, if any, either by word of month or by a written notice
  
  placed on each heap:
  Provided that 
  
  no such announcement shall be necessary in the case of a heap where the total
  
  price of the commodity contained in such heap does not exceed two rupees.
  2.  Where,
  
  on weighment, measurement or counting of any commodity sold by heap, it is
  
  found that the weight, measure or number, determined by such weighment,
  
  measurement or counting, is less than the approximate weight, measure or number
  
  announced by the seller or his agent and the deficiency is more than five per
  
  cent of such announced weight, measure or number, the seller shall be deemed to
  
  have used a false weight or measure.