“18. It is thus clear that the Chief Justice of the High Court has the constitutional power to determine what Judge in each case is to sit alone, and what Judges of the Court, whether with or without the Chief Justice, are to Constitute the several Division Courts. In other words, the function of assignment of judicial business amongst the Judges of the High Court, whether sitting singly or in Division Courts, is entrusted by law to the Chief Justice and the Judge or Judges derive jurisdiction to deal with and decide the cases or class of cases assigned to them by virtue of the determination made by the Chief Justice. This power is derived not only from the provisions of Section 108 sub-Section (2) of the Government of India Act, 1915, which still subsists and the power whereunder still continues to be there, as held in National Sewing Thread Co. Ltd.’s case, but also inheres in the Chief Justice.