Information and Broadcasting Minister Ashwini Vaishnaw today hit out at Congress after two BJP MPs got injured during a protest in Parliament House. Talking to the media outside Parliament, he accused the Congress of lowering the dignity of Parliament. Mr Vaishnaw said the main opposition party is rattled, the way history of Congress was exposed during the debate on the Constitution in Parliament. The Minister alleged that the entire country knows that the Congress has always opposed Dr B R Ambedkar.