Commuters walk past parked bikes at a market area near a train station on the eve of World Population Day in Mumbai, India, Tuesday, July 10, 2012. Nearly 7 million commuters ride the overtaxed suburban rail network each work day in Mumbai. India is the second most populous country in the world, with 1.2 billion people, and is expected to overtake China around 2030 when its population soars to an estimated 1.6 billion. <AP/NEWSis>
