Delhi recorded 4,006 fresh Covid-19 cases on Tuesday, taking the infection tally in the national Capital to over 5.74 lakh, while 86 new fatalities pushed the toll from the disease to 9,260, authorities said. These fresh cases came out of the 58,456 tests conducted on Monday, including 30,297 RT-PCR tests, while the positivity rate stood at 6.85 per cent, according to the latest bulletin by the Delhi Health Department.