Voting is underway in India’s election, the world’s biggest. From the icy Himalayas to humid jungles nearly a billion people are eligible to vote over the next six weeks. It is a test of Prime Minister’s Narendra Modi’s drive to boost the economy and the country’s global status. We look at Modi’s popularity and how Hindu nationalism and a savvy social media strategy are helping to drive it. Learn more about your ad choices. Visit megaphone.fm/adchoices