NEW DELHI, April 12 -- Prime Minister Narendra Modi and Leader of Opposition in the Lok Sabha, Rahul Gandhi, on Saturday had a cordial exchange at a function held in the Parliament House complex. The interaction, caught on camera, happened when the two leaders greeted each other during an event organised to mark the 200th birth anniversary of social reformer Mahatma Jyotirao Phule. According to two officials, the two leaders exchanged courtesies, and Modi asked Rahul about Sonia Gandhi's health. In the video that was widely circulated on social media, when the PM arrived to pay floral tributes at the statue of Phule on the occasion of his birth anniversary, several leaders, including Gandhi, were seen greeting him. The PM then turned toward...