law: Code of Criminal Procedure Act, 1973
  
  7.Territorial divisions.-
  (1) Every State shall be a sessions division
  
  or shall consist of sessions divisions; and every sessions division shall, for
  
  the purposes of this Code, be a district or consist of districts:
  
  Provided that every metropolitan area shall, for the said purposes, be a
  
  separate sessions division and district.
  (2) The State Government may, after consultation with the High Court, alter the
  
  limits or the number of such divisions and districts.
  (3) The State Government may, after consultation with the High Court, divide
  
  any district into sub-divisions and may alter the limits or the number of such
  
  sub-divisions.
  (4) The sessions divisions, districts and sub-divisions existing in a State at
  
  the commencement of this Code, shall be deemed to have been formed under this
  
  section.