Prime Minister Narendra Modi has launched his campaign blitzkrieg in Karnataka with a direct attack on Congress chief Rahul Gandhi, accusing him of disrespecting ‘Vande Mataram’ and being “ignorant” of India’s history. He also challenged the Congress leader to list out the Siddaramaiah government’s achievements in 15 minutes in “Hindi, English or your mother tongue”, taking a jibe at his mother Sonia Gandhi’s Italian roots. The PM was speaking at a rally in Santhemarahalli in Chamarajanagara. With just 10 days left for campaigning to conclude in poll-bound Karnataka, the PM…