According to sources, the Congress' three-line whip comes in the wake of its attempt to embarrass the government by moving amendments to the motion of thanks to the President's address.
"A whip has been issued by the party asking all its members to be present in the Rajya Sabha tomorrow during the Prime Minister's reply to the motion of thanks to President's address," a senior Congress member told PTI.
Prime Minister Narendra Modi will reply to the debate on motion of thanks in the Upper House at 2 PM.