The vaccination drive will be widened to everyone above 18 in the next stage beginning May 1, the government announced today after Prime Minister Narendra Modi held a series of meetings today; Delhi will be under a six-day lockdown from 10 pm tonight to 5 am next Monday, Chief Minister Arvind Kejriwal announced today; Former prime minister Manmohan Singh, 88, has tested positive for COVID-19 and been admitted to the Trauma Centre of Delhi's AIIMS; and other top news of the day.