New Delhi: Delhi recorded 486 fresh COVID-19 cases on Thursday, the sixth time the daily infection count stood below the 500-mark in January, while the positivity rate dipped to 0.63 per cent, officials said.The infection tally in the city stood to 6.28 lakh and the death toll mounted to 10,644, they said.The active cases tally on Thursday dropped to 4,168 from 4,481 the previous day.The city had recorded 654 cases on Wednesday with a positivity rate of 0.88 per cent, the only time the daily infection count has crossed the 500-mark in the first seven days of January.Delhi Health Minister Satyendar Jain had earlier said the positivity rate had been below one per cent for the past several days, indicating improvement in the pandemic situation.