Section 218(3) in Rules of Procedure and Conduct of Business in Lok Sabha
(3)The Speaker may, in order to avoid repetition of debate, require members desiring to take part in discussion on an Appropriation Bill to give advance intimation of the specific points they intend to raise, and the Speaker may withhold permission for raising such of the points, as in the opinion of the Speaker appear to be repetitions of the matters discussed on a demand for grant or as may not be of sufficient public importance.