Delhi recorded a massive 50 per cent jump in coronavirus cases on Saturday, at 2,716, with around 3.64 percent of COVID-19 tests returning positive - a high positivity rate considered one of the first signs of an impending wave of infections.
The city also recorded one death.
Saturday's rise is the highest since May 21 when 3,009 cases were recorded with a positivity rate of 4.76 per cent, while 252 deaths were also reported on that day.
On Friday, New Year's Eve, it had recorded 1,796 cases and a positivity rate of 1.73 per cent. On Thursday, 1,313 cases were recorded with a 2.44 per cent positivity rate, according to official figures.
The huge spike in fresh cases in the span of the last few days in Delhi is being recorded amid a significant jump in cases of new Omicron variant of COVID-19 in the city.
The death count due to coronavirus in the city has risen to 25,108.
On Wednesday, Tuesday and Monday the daily cases tally had stood at 923, 496 and 331, respectively, as per official data.
Given the high number of cases, the city has imposed a 'Yellow Alert' - the first of a four-level system of restrictions that have closed down schools, gyms, set 50 per cent occupancy rules for private offices and transit, and a night curfew.
Delhi Health Minister Satyendar Jain on Saturday said whether more curbs need to be imposed in the national capital will be reviewed although hospital admissions are not worrying so far.
He also said that in view of the current situation, more than 3,000 beds have been prepared for children.
"Prevention is better than cure and people need to keep themselves safe at all times. It should be our responsibility to wear masks at all times whenever we are heading outside our homes, this will help us to stop the further spread of coronavirus," Mr Jain told reporters.