NEW DELHI : Delhi recorded 1,450 new coronavirus cases on Sunday, the city's highest single-day spike in August, taking the tally to over 1.61 lakh while the death toll rose to 4,300, authorities said.The national capital had recorded 1,412 fresh COVID-19 cases on Saturday, the previous highest single-day spike of the month.According to the Delhi government's health bulletin, a total of 18,731 tests -- 6,261 RTPCR/CBNAAT/TrueNat tests and 12,470 rapid antigen tests -- have been conducted in the last 24 hours.So far, 14,31,094 COVID-19 tests have been conducted in Delhi, while the number of tests per million population stands at 75,320 in the city.The positivity rate stands at 7.74%, while the recovery rate is 90.04%.Delhi has seen a.