the world's largest election is under way in india. overfive weeks, 900 million eligible voters in 20 states are casting their ballots to decide who will rule this vast country for the next five years. and this is no small decision — because in that time, india's population is set to overtake china's. and its economy is likely to become bigger than the uk's. the size of this democratic exercise is like no other, but the issues that it brings up are all too familiar. social media, once again, is playing a part in swaying political opinions. and once again, misinformation, so—called "fake news" is attempting to cloud voters‘ judgment. and the problem is, last year, bbc—led research revealed that ordinary citizens in india are less concerned with the facts of a story, and they are more likely to share it if it bolsters their national identity.