Section 17A(1) in Road Transport Corporations Act, 1950
(1)Where a Corporation (hereinafter in this section referred to as the parent Corporation) is satisfied that it is expedient or necessary so to do for the more efficient discharge of its functions under this Act, it may, with the concurrence of the State Government and the Central Government, frame by notification in the Official Gazette a scheme or schemes providing for the establishment of one or more subsidiary corporations.