law: Code of Criminal Procedure Act, 1973
  
  253.Conviction on plea of guilty in absence of accused in petty cases.-
  (1) Where a summons has been issued under
  
  section 206 and the accused desires to plead guilty to the charge without
  
  appearing before the Magistrate, he shall transmit to the Magistrate, by post or
  
  by messenger, a letter containing his plea and also the amount of fine
  
  specified in the summons.
  (2) The Magistrate may, in his discretion, convict the accused in his absence,
  
  on his plea of guilty and sentence him to pay the fine specified in the summons,
  
  and the amount transmitted by the accused shall be adjusted towards that fine,
  
  or where a pleader authorized by the accused in this behalf pleads guilty on
  
  behalf of the accused, the Magistrate shall record the plea as nearly as
  
  possible in the words used by the pleader and may, in his discretion, convict
  
  the accused on such plea and sentence him as aforesaid.