A day after India launched a no-holds-barred attack on Pakistan Foreign Minister Bilawal Bhutto-Zardari for his "uncivilised" outburst against Prime Minister Narendra Modi after the former called PM Modi “butcher of Gujarat”, Pakistan minister Shazia Marri has now threatened India with “nuclear war.” In a news conference on Saturday, Pakistan Peoples Party leader Shazia Marri said, “Pakistan knows how to …