if after consideration of the report of the Finance Commission he thinks it necessary to do so.
279. (1) In the foregoing provisions of this Chapter, "net proceeds" means in relation to any tax or duty the proceeds thereof reduced by the cost of collection, and for the purposes of those provisions the net proceeds of any tax or duty, or of any part of any tax or duty, in or attributable to any area shall be ascertained and certified by the Comptroller and Auditor-General of India, whose certificate shall be final.
(2) Subject as aforesaid, and to any other express provision of this Chapter, a law made by Parliament or an order of the President may, in any case where under this Part the proceeds of any duty or tax are, or may be, assigned to any State, provide for the manner in which the proceeds are to be calculated, for the time from or at which and the manner in which any payments are to be made, for the making of adjustments between one financial year and another, and for any other incidental or ancillary matters.
280. (1) The President shall, within two years from the commencement of this Constitution and thereafter at the expiration of every fifth year or at such earlier time as the President considers necessary, by order constitute a Finance Commission which shall consist of a Chairman and four other members to be appointed by the President.
(2) Parliament may by law determine the qualifications which shall be requisite for appointment as members of the Commission and the manner in which they shall be selected.
(3) It shall be the duty of the Commission to make recommendations to the President as to—
Calculation of "net proceeds", etc.
Finance Commission.