Rahul Gandhi today listed five questions for Prime Minister Narendra Modi on the notes ban and its impact on the people. Hours later the ruling BJP returned the favour. Mr Gandhi's questions included how much black or untaxed money has come back into the system since November 8, when PM Modi declared 500-and 1,000-rupee notes banned. "50 days are coming to an end, the PM needs to answer key questions," he said, speaking to reporters on the Congress party's 132nd foundation day. "Modiji has performed demonetisation yagna for 50 families and one per cent super rich people of the country," Mr Gandhi said.