The Paris climate summit saw Indian Prime Minister Narendra Modi and Pakistan's Prime Minister Nawaz Sharif holding a conversation and later shaking hands. This created a buzz among the nations. Differences of opinions also occurred. Now, Foreign Affairs minister Sushma Swaraj is on a tour of Pakistan to attend the "Heart of Asia" convention. Question being raised is why the sudden change of heart in both nations? DNA gives you an in-depth analysis. Zee News is the highly popular Hindi News channel of India’s largest television network ZMCL.