law: Indian Post Office Act, 1898 
  49. Penalty for misconduct of person employed to carry or
  
  deliver mail bags or postal articles
  Whoever, being
  
  employed to carry or deliver any mail bag or any postal article in course of
  
  transmission by post,-
  (a) is in a state of
  
  intoxication while so employed, or
  (b) is guilty of
  
  carelessness or other misconduct whereby the safety of any such mail bag or
  
  postal article as aforesaid is endangered, or
  (c) loiters or makes
  
  delay in the conveyance or delivery of any such mail bag or postal article as
  
  aforesaid, or
  (d) does not use due
  
  care and diligence safely to convey or deliver any such mail bag or postal
  
  article as aforesaid, shall be punishable with fine which may extend to fifty
  
  rupees.