coronavirus cases have increased by more than 20,000. There has been a surge of 4,57,780 COVID-19 cases from June 1 till date.As many as 442 deaths due to COVID-19 have been reported in the last 24 hours taking the number of patients succumbing to the deadly virus across the country to 18,655.Maharashtra remains the worst affected state with a total of 1,92,990 cases, followed by Tamil Nadu and Delhi with1,02,721 and 94,695 cases respectively.The Centre said that the recovery rate has further improved to 60.80 per cent.