NEW DELHI : The number of COVID-19 containment zones in Delhi has risen to 421 after re-mapping of such areas, an increase of 141 in the last two days, as the cases rose to over 83,000 on Sunday.Noting that the number of recoveries was more that the number of new cases, Delhi government said that the situation will improve in coming weeks and it will not be as "bleak" as it appeared in early June when there was a rapid surge in infections.Around 2.45 lakh people have been screened till Saturday night in an ongoing mammoth exercise to check the spread of COVID-19 in the national capital under a revised strategy, officials said.Authorities said that the city has reported 2,889 fresh cases in the last 24 hours while 3,306 people have recovered.