In view of a spurt in coronavirus cases in the city, the Delhi government on Wednesday made wearing of masks mandatory in public places.
Authorities have also imposed a fine of Rs 500 on violators.
Officials said the Delhi Disaster Management Authority, in its meeting, also decided not to shut schools but chose to come up with a separate Standard Operating Procedure in consultation with experts.
The government is expected to issue an official order regarding the mandatory use of masks soon.
Sources said authorities have been asked to keep a close watch on social gatherings and ramp up testing in the national capital.
They said Chief Minister Arvind Kejriwal is closely monitoring the situation.
On Tuesday, Delhi recorded a nearly 26 per cent jump in fresh Covid-19 cases.
The health department said 632 fresh cases were reported on Wednesday, and the positivity rate was 4.42 per cent.
The city had on Monday recorded 501 cases and zero death while the positivity rate stood at 7.72 per cent.
Total active cases stand at 18,469
US health official stresses on importance of jabs and touts effectiveness of masks
Over 196.7 million PCR tests have been conducted in the country so far
There were two new deaths attributed to the pandemic by health officials, compared with three over the weekend, which were China's first since May
According to the revised guidelines, it is also no longer mandatory for passengers to be vaccinated