New Delhi, Feb. 4 -- Parliamentary Affairs Minister Kiren Rijiju on Wednesday said Leader of Opposition Rahul Gandhi must follow parliamentary rules while speaking in the House.

He added that he had replied to Gandhi's letter and that no member can speak arbitrarily in Parliament.

A day earlier, Rahul Gandhi wrote to Speaker Om Birla, raising concerns over being prevented from speaking on matters of national security during the discussion on Motion of Thanks to the President's Address.

Speaking to the reporters, Rijiju said, "I have responded to it. We, too, are tired of waiting, but he doesn't speak. He says that he will speak out of the rules. We waited two days, but others too should be allowed to speak. He can't speak arbitrarily. ...