The Biggest Stories of April 21, 2016

The Centre will challenge the Uttarakhand High Court's verdict setting aside President's Rule in the state in the Supreme Court; A CPM worker killed in Murshidabad as violence mars the third phase of polling in West Bengal; A car falls down an elevator shaft in a parking lot, a 14-year-old learning how to drive was at the wheel; As Delhi tries alternate day car use to bring down air pollution, two of the city's landfills burn for days, the green court steps in; all this and more in the news wrap of the days.