law: Expenditure-Tax Act, 1987 
  17. Penalty for concealment of chargeable
  
  expenditure 
  If the 16[Assessing] Officer or the
  
  Commissioner (Appeals) in the course of any proceedings under this Act is
  
  satisfied that any person has concealed particulars of chargeable expenditure
  
  or has furnished inaccurate particulars of such chargeable expenditure, he may
  
  direct that such person shall pay by way of penalty, in addition to any
  
  expenditure-tax payable by him, a sum which shall not be less than, but which
  
  shall not exceed twice, the amount of tax sought to be evaded by reason of
  
  concealment of particulars of chargeable expenditure or the furnishing of
  
  inaccurate particulars of such chargeable expenditure:
  Provided  that if the amount of chargeable
  
  expenditure (as determined by the 16[Assessing] Officer on
  
  assessment) in respect of which particulars have been concealed or inaccurate
  
  particulars have been furnished exceeds a sum of twenty-five thousand rupees,
  
  the 16[Assessing] Officer shall not issue any direction for payment
  
  by way of penalty without the previous approval of the 14[Additional
  
  Commissioner or, as the case may be, of the] 24[Deputy]
  
  Commissioner.